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Finding the Fourth Proportional to 94,737.20, 142,105.80 and 66,474.80

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Solution

The fourth proportional to 94,737.20, 142,105.80 and 66,474.80 is: 99,712.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,737.20 : 142,105.80 = 66,474.80 : x
  2. Step 2: Convert to fraction form
    94,737.20/142,105.80 = 66,474.80/x
  3. Step 3: Cross multiply
    94,737.20x = 142,105.80 × 66,474.80
  4. Step 4: Simplify right side
    94,737.20x = 9,446,454,633.84
  5. Step 5: Solve for x
    x = 9,446,454,633.84/94,737.20
  6. Step 6: Final answer
    x = 99,712.20

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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.