Home / 120,474.18-180,734.07-48,432.66

Finding the Fourth Proportional to 120,474.18, 180,734.07 and 48,432.66

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Solution

The fourth proportional to 120,474.18, 180,734.07 and 48,432.66 is: 72,658.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,474.18 : 180,734.07 = 48,432.66 : x
  2. Step 2: Convert to fraction form
    120,474.18/180,734.07 = 48,432.66/x
  3. Step 3: Cross multiply
    120,474.18x = 180,734.07 × 48,432.66
  4. Step 4: Simplify right side
    120,474.18x = 8,753,431,762.73
  5. Step 5: Solve for x
    x = 8,753,431,762.73/120,474.18
  6. Step 6: Final answer
    x = 72,658.16

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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.