Home / 103,691.20-155,421.60-44,516.80

Finding the Fourth Proportional to 103,691.20, 155,421.60 and 44,516.80

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Solution

The fourth proportional to 103,691.20, 155,421.60 and 44,516.80 is: 66,725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,691.20 : 155,421.60 = 44,516.80 : x
  2. Step 2: Convert to fraction form
    103,691.20/155,421.60 = 44,516.80/x
  3. Step 3: Cross multiply
    103,691.20x = 155,421.60 × 44,516.80
  4. Step 4: Simplify right side
    103,691.20x = 6,918,872,282.88
  5. Step 5: Solve for x
    x = 6,918,872,282.88/103,691.20
  6. Step 6: Final answer
    x = 66,725.74

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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.