Home / 148,954.71-205,545.27-87,691.17

Finding the Fourth Proportional to 148,954.71, 205,545.27 and 87,691.17

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Solution

The fourth proportional to 148,954.71, 205,545.27 and 87,691.17 is: 121,006.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,954.71 : 205,545.27 = 87,691.17 : x
  2. Step 2: Convert to fraction form
    148,954.71/205,545.27 = 87,691.17/x
  3. Step 3: Cross multiply
    148,954.71x = 205,545.27 × 87,691.17
  4. Step 4: Simplify right side
    148,954.71x = 18,024,505,214.27
  5. Step 5: Solve for x
    x = 18,024,505,214.27/148,954.71
  6. Step 6: Final answer
    x = 121,006.61

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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.