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Finding the Fourth Proportional to 120,073, 180,052.92 and 70,167.46

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Solution

The fourth proportional to 120,073, 180,052.92 and 70,167.46 is: 105,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,073 : 180,052.92 = 70,167.46 : x
  2. Step 2: Convert to fraction form
    120,073/180,052.92 = 70,167.46/x
  3. Step 3: Cross multiply
    120,073x = 180,052.92 × 70,167.46
  4. Step 4: Simplify right side
    120,073x = 12,633,856,061.98
  5. Step 5: Solve for x
    x = 12,633,856,061.98/120,073
  6. Step 6: Final answer
    x = 105,218.13

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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.