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Finding the Fourth Proportional to 101,277.80, 139,766.82 and 63,572.84

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Solution

The fourth proportional to 101,277.80, 139,766.82 and 63,572.84 is: 87,732.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,277.80 : 139,766.82 = 63,572.84 : x
  2. Step 2: Convert to fraction form
    101,277.80/139,766.82 = 63,572.84/x
  3. Step 3: Cross multiply
    101,277.80x = 139,766.82 × 63,572.84
  4. Step 4: Simplify right side
    101,277.80x = 8,885,373,685.17
  5. Step 5: Solve for x
    x = 8,885,373,685.17/101,277.80
  6. Step 6: Final answer
    x = 87,732.69

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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.