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Finding the Fourth Proportional to 120,545.79, 180,716.58 and 73,700.25

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Solution

The fourth proportional to 120,545.79, 180,716.58 and 73,700.25 is: 110,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,545.79 : 180,716.58 = 73,700.25 : x
  2. Step 2: Convert to fraction form
    120,545.79/180,716.58 = 73,700.25/x
  3. Step 3: Cross multiply
    120,545.79x = 180,716.58 × 73,700.25
  4. Step 4: Simplify right side
    120,545.79x = 13,318,857,125.15
  5. Step 5: Solve for x
    x = 13,318,857,125.15/120,545.79
  6. Step 6: Final answer
    x = 110,487.95

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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.