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Finding the Fourth Proportional to 162,447.35, 243,726.35 and 87,574.73

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Solution

The fourth proportional to 162,447.35, 243,726.35 and 87,574.73 is: 131,391.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,447.35 : 243,726.35 = 87,574.73 : x
  2. Step 2: Convert to fraction form
    162,447.35/243,726.35 = 87,574.73/x
  3. Step 3: Cross multiply
    162,447.35x = 243,726.35 × 87,574.73
  4. Step 4: Simplify right side
    162,447.35x = 21,344,269,295.14
  5. Step 5: Solve for x
    x = 21,344,269,295.14/162,447.35
  6. Step 6: Final answer
    x = 131,391.92

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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.