Home / 206,235.74-284,542.65-129,831.11

Finding the Fourth Proportional to 206,235.74, 284,542.65 and 129,831.11

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Solution

The fourth proportional to 206,235.74, 284,542.65 and 129,831.11 is: 179,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,235.74 : 284,542.65 = 129,831.11 : x
  2. Step 2: Convert to fraction form
    206,235.74/284,542.65 = 129,831.11/x
  3. Step 3: Cross multiply
    206,235.74x = 284,542.65 × 129,831.11
  4. Step 4: Simplify right side
    206,235.74x = 36,942,487,736.16
  5. Step 5: Solve for x
    x = 36,942,487,736.16/206,235.74
  6. Step 6: Final answer
    x = 179,127.47

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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.