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Finding the Fourth Proportional to 128,557.17, 192,960.45 and 62,044.11

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Solution

The fourth proportional to 128,557.17, 192,960.45 and 62,044.11 is: 93,126.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,557.17 : 192,960.45 = 62,044.11 : x
  2. Step 2: Convert to fraction form
    128,557.17/192,960.45 = 62,044.11/x
  3. Step 3: Cross multiply
    128,557.17x = 192,960.45 × 62,044.11
  4. Step 4: Simplify right side
    128,557.17x = 11,972,059,385.45
  5. Step 5: Solve for x
    x = 11,972,059,385.45/128,557.17
  6. Step 6: Final answer
    x = 93,126.35

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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.