Home / 120,213.76-180,377.34-53,647.96

Finding the Fourth Proportional to 120,213.76, 180,377.34 and 53,647.96

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Solution

The fourth proportional to 120,213.76, 180,377.34 and 53,647.96 is: 80,497.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,213.76 : 180,377.34 = 53,647.96 : x
  2. Step 2: Convert to fraction form
    120,213.76/180,377.34 = 53,647.96/x
  3. Step 3: Cross multiply
    120,213.76x = 180,377.34 × 53,647.96
  4. Step 4: Simplify right side
    120,213.76x = 9,676,876,321.23
  5. Step 5: Solve for x
    x = 9,676,876,321.23/120,213.76
  6. Step 6: Final answer
    x = 80,497.24

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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.