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Finding the Fourth Proportional to 201,124.41, 277,472.31 and 129,545.92

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Solution

The fourth proportional to 201,124.41, 277,472.31 and 129,545.92 is: 178,722.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,124.41 : 277,472.31 = 129,545.92 : x
  2. Step 2: Convert to fraction form
    201,124.41/277,472.31 = 129,545.92/x
  3. Step 3: Cross multiply
    201,124.41x = 277,472.31 × 129,545.92
  4. Step 4: Simplify right side
    201,124.41x = 35,945,405,673.48
  5. Step 5: Solve for x
    x = 35,945,405,673.48/201,124.41
  6. Step 6: Final answer
    x = 178,722.24

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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.