Home / 120,321.14-180,522.72-45,462.87

Finding the Fourth Proportional to 120,321.14, 180,522.72 and 45,462.87

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Solution

The fourth proportional to 120,321.14, 180,522.72 and 45,462.87 is: 68,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,321.14 : 180,522.72 = 45,462.87 : x
  2. Step 2: Convert to fraction form
    120,321.14/180,522.72 = 45,462.87/x
  3. Step 3: Cross multiply
    120,321.14x = 180,522.72 × 45,462.87
  4. Step 4: Simplify right side
    120,321.14x = 8,207,080,951.41
  5. Step 5: Solve for x
    x = 8,207,080,951.41/120,321.14
  6. Step 6: Final answer
    x = 68,209.80

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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.