Home / 128,088.64-192,138.48-39,345.60

Finding the Fourth Proportional to 128,088.64, 192,138.48 and 39,345.60

Calculator

Solution

The fourth proportional to 128,088.64, 192,138.48 and 39,345.60 is: 59,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,088.64 : 192,138.48 = 39,345.60 : x
  2. Step 2: Convert to fraction form
    128,088.64/192,138.48 = 39,345.60/x
  3. Step 3: Cross multiply
    128,088.64x = 192,138.48 × 39,345.60
  4. Step 4: Simplify right side
    128,088.64x = 7,559,803,778.69
  5. Step 5: Solve for x
    x = 7,559,803,778.69/128,088.64
  6. Step 6: Final answer
    x = 59,020.10

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.