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Finding the Fourth Proportional to 120,622.74, 166,350.42 and 75,304.92

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Solution

The fourth proportional to 120,622.74, 166,350.42 and 75,304.92 is: 103,852.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,622.74 : 166,350.42 = 75,304.92 : x
  2. Step 2: Convert to fraction form
    120,622.74/166,350.42 = 75,304.92/x
  3. Step 3: Cross multiply
    120,622.74x = 166,350.42 × 75,304.92
  4. Step 4: Simplify right side
    120,622.74x = 12,527,005,070.07
  5. Step 5: Solve for x
    x = 12,527,005,070.07/120,622.74
  6. Step 6: Final answer
    x = 103,852.76

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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.