Home / 120,552.90-180,474.62-80,472.46

Finding the Fourth Proportional to 120,552.90, 180,474.62 and 80,472.46

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Solution

The fourth proportional to 120,552.90, 180,474.62 and 80,472.46 is: 120,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,552.90 : 180,474.62 = 80,472.46 : x
  2. Step 2: Convert to fraction form
    120,552.90/180,474.62 = 80,472.46/x
  3. Step 3: Cross multiply
    120,552.90x = 180,474.62 × 80,472.46
  4. Step 4: Simplify right side
    120,552.90x = 14,523,236,638.97
  5. Step 5: Solve for x
    x = 14,523,236,638.97/120,552.90
  6. Step 6: Final answer
    x = 120,471.90

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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.