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Finding the Fourth Proportional to 123,089.87, 184,634.80 and 38,909.16

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Solution

The fourth proportional to 123,089.87, 184,634.80 and 38,909.16 is: 58,363.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,089.87 : 184,634.80 = 38,909.16 : x
  2. Step 2: Convert to fraction form
    123,089.87/184,634.80 = 38,909.16/x
  3. Step 3: Cross multiply
    123,089.87x = 184,634.80 × 38,909.16
  4. Step 4: Simplify right side
    123,089.87x = 7,183,984,974.77
  5. Step 5: Solve for x
    x = 7,183,984,974.77/123,089.87
  6. Step 6: Final answer
    x = 58,363.74

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1.5x scale

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.