Home / 205,061.40-307,592.10-129,937.95

Finding the Fourth Proportional to 205,061.40, 307,592.10 and 129,937.95

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Solution

The fourth proportional to 205,061.40, 307,592.10 and 129,937.95 is: 194,906.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,061.40 : 307,592.10 = 129,937.95 : x
  2. Step 2: Convert to fraction form
    205,061.40/307,592.10 = 129,937.95/x
  3. Step 3: Cross multiply
    205,061.40x = 307,592.10 × 129,937.95
  4. Step 4: Simplify right side
    205,061.40x = 39,967,886,910.20
  5. Step 5: Solve for x
    x = 39,967,886,910.20/205,061.40
  6. Step 6: Final answer
    x = 194,906.93

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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.