Home / 148,125.86-204,356.61-102,781.15

Finding the Fourth Proportional to 148,125.86, 204,356.61 and 102,781.15

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Solution

The fourth proportional to 148,125.86, 204,356.61 and 102,781.15 is: 141,798.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,125.86 : 204,356.61 = 102,781.15 : x
  2. Step 2: Convert to fraction form
    148,125.86/204,356.61 = 102,781.15/x
  3. Step 3: Cross multiply
    148,125.86x = 204,356.61 × 102,781.15
  4. Step 4: Simplify right side
    148,125.86x = 21,004,007,385.90
  5. Step 5: Solve for x
    x = 21,004,007,385.90/148,125.86
  6. Step 6: Final answer
    x = 141,798.38

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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.