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Finding the Fourth Proportional to 126,099.70, 189,149.55 and 63,891.70

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Solution

The fourth proportional to 126,099.70, 189,149.55 and 63,891.70 is: 95,837.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,099.70 : 189,149.55 = 63,891.70 : x
  2. Step 2: Convert to fraction form
    126,099.70/189,149.55 = 63,891.70/x
  3. Step 3: Cross multiply
    126,099.70x = 189,149.55 × 63,891.70
  4. Step 4: Simplify right side
    126,099.70x = 12,085,086,303.74
  5. Step 5: Solve for x
    x = 12,085,086,303.74/126,099.70
  6. Step 6: Final answer
    x = 95,837.55

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Similar ratio
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1.5x scale

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.