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Finding the Fourth Proportional to 158,502.92, 218,804.37 and 101,217.29

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Solution

The fourth proportional to 158,502.92, 218,804.37 and 101,217.29 is: 139,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,502.92 : 218,804.37 = 101,217.29 : x
  2. Step 2: Convert to fraction form
    158,502.92/218,804.37 = 101,217.29/x
  3. Step 3: Cross multiply
    158,502.92x = 218,804.37 × 101,217.29
  4. Step 4: Simplify right side
    158,502.92x = 22,146,785,371.56
  5. Step 5: Solve for x
    x = 22,146,785,371.56/158,502.92
  6. Step 6: Final answer
    x = 139,724.78

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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.