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Finding the Fourth Proportional to 100,552.38, 138,827.30 and 62,352.51

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Solution

The fourth proportional to 100,552.38, 138,827.30 and 62,352.51 is: 86,086.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,552.38 : 138,827.30 = 62,352.51 : x
  2. Step 2: Convert to fraction form
    100,552.38/138,827.30 = 62,352.51/x
  3. Step 3: Cross multiply
    100,552.38x = 138,827.30 × 62,352.51
  4. Step 4: Simplify right side
    100,552.38x = 8,656,230,611.52
  5. Step 5: Solve for x
    x = 8,656,230,611.52/100,552.38
  6. Step 6: Final answer
    x = 86,086.78

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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.