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Finding the Fourth Proportional to 99,801.76, 137,723 and 59,494.74

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Solution

The fourth proportional to 99,801.76, 137,723 and 59,494.74 is: 82,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,801.76 : 137,723 = 59,494.74 : x
  2. Step 2: Convert to fraction form
    99,801.76/137,723 = 59,494.74/x
  3. Step 3: Cross multiply
    99,801.76x = 137,723 × 59,494.74
  4. Step 4: Simplify right side
    99,801.76x = 8,193,794,077.02
  5. Step 5: Solve for x
    x = 8,193,794,077.02/99,801.76
  6. Step 6: Final answer
    x = 82,100.70

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1.5x scale

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.