Home / 156,144.70-234,182.01-71,823.88

Finding the Fourth Proportional to 156,144.70, 234,182.01 and 71,823.88

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Solution

The fourth proportional to 156,144.70, 234,182.01 and 71,823.88 is: 107,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,144.70 : 234,182.01 = 71,823.88 : x
  2. Step 2: Convert to fraction form
    156,144.70/234,182.01 = 71,823.88/x
  3. Step 3: Cross multiply
    156,144.70x = 234,182.01 × 71,823.88
  4. Step 4: Simplify right side
    156,144.70x = 16,819,861,146.47
  5. Step 5: Solve for x
    x = 16,819,861,146.47/156,144.70
  6. Step 6: Final answer
    x = 107,719.70

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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.