Home / 131,352.32-181,273.20-74,781.92

Finding the Fourth Proportional to 131,352.32, 181,273.20 and 74,781.92

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Solution

The fourth proportional to 131,352.32, 181,273.20 and 74,781.92 is: 103,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,352.32 : 181,273.20 = 74,781.92 : x
  2. Step 2: Convert to fraction form
    131,352.32/181,273.20 = 74,781.92/x
  3. Step 3: Cross multiply
    131,352.32x = 181,273.20 × 74,781.92
  4. Step 4: Simplify right side
    131,352.32x = 13,555,957,940.54
  5. Step 5: Solve for x
    x = 13,555,957,940.54/131,352.32
  6. Step 6: Final answer
    x = 103,203.03

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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.