Home / 152.54-210.47-87.02

Finding the Fourth Proportional to 152.54, 210.47 and 87.02

Calculator

Solution

The fourth proportional to 152.54, 210.47 and 87.02 is: 120.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.54 : 210.47 = 87.02 : x
  2. Step 2: Convert to fraction form
    152.54/210.47 = 87.02/x
  3. Step 3: Cross multiply
    152.54x = 210.47 × 87.02
  4. Step 4: Simplify right side
    152.54x = 18,313.61
  5. Step 5: Solve for x
    x = 18,313.61/152.54
  6. Step 6: Final answer
    x = 120.06

Related Problems

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.