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Finding the Fourth Proportional to 159,545.46, 220,169.43 and 87,923.64

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Solution

The fourth proportional to 159,545.46, 220,169.43 and 87,923.64 is: 121,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,545.46 : 220,169.43 = 87,923.64 : x
  2. Step 2: Convert to fraction form
    159,545.46/220,169.43 = 87,923.64/x
  3. Step 3: Cross multiply
    159,545.46x = 220,169.43 × 87,923.64
  4. Step 4: Simplify right side
    159,545.46x = 19,358,097,702.33
  5. Step 5: Solve for x
    x = 19,358,097,702.33/159,545.46
  6. Step 6: Final answer
    x = 121,332.80

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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.