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Finding the Fourth Proportional to 100,560.58, 138,838.52 and 62,360.71

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Solution

The fourth proportional to 100,560.58, 138,838.52 and 62,360.71 is: 86,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,560.58 : 138,838.52 = 62,360.71 : x
  2. Step 2: Convert to fraction form
    100,560.58/138,838.52 = 62,360.71/x
  3. Step 3: Cross multiply
    100,560.58x = 138,838.52 × 62,360.71
  4. Step 4: Simplify right side
    100,560.58x = 8,658,068,682.55
  5. Step 5: Solve for x
    x = 8,658,068,682.55/100,560.58
  6. Step 6: Final answer
    x = 86,098.04

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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.