Home / 129,560.22-178,793.60-75,834.72

Finding the Fourth Proportional to 129,560.22, 178,793.60 and 75,834.72

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Solution

The fourth proportional to 129,560.22, 178,793.60 and 75,834.72 is: 104,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,560.22 : 178,793.60 = 75,834.72 : x
  2. Step 2: Convert to fraction form
    129,560.22/178,793.60 = 75,834.72/x
  3. Step 3: Cross multiply
    129,560.22x = 178,793.60 × 75,834.72
  4. Step 4: Simplify right side
    129,560.22x = 13,558,762,214.62
  5. Step 5: Solve for x
    x = 13,558,762,214.62/129,560.22
  6. Step 6: Final answer
    x = 104,652.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.