Home / 130,028-179,438.64-70,412

Finding the Fourth Proportional to 130,028, 179,438.64 and 70,412

Calculator

Solution

The fourth proportional to 130,028, 179,438.64 and 70,412 is: 97,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,028 : 179,438.64 = 70,412 : x
  2. Step 2: Convert to fraction form
    130,028/179,438.64 = 70,412/x
  3. Step 3: Cross multiply
    130,028x = 179,438.64 × 70,412
  4. Step 4: Simplify right side
    130,028x = 12,634,633,519.68
  5. Step 5: Solve for x
    x = 12,634,633,519.68/130,028
  6. Step 6: Final answer
    x = 97,168.56

Related Problems

Find fourth proportional to 65,014, 89,719.32 and 35,206
Half scale
Find fourth proportional to 260,056, 358,877.28 and 140,824
Double scale
Find fourth proportional to 130,029, 179,440.02 and 70,413
Similar ratio
Find fourth proportional to 195,042, 269,157.96 and 105,618
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.