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Finding the Fourth Proportional to 126,367.59, 174,398.21 and 69,789.90

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Solution

The fourth proportional to 126,367.59, 174,398.21 and 69,789.90 is: 96,316.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,367.59 : 174,398.21 = 69,789.90 : x
  2. Step 2: Convert to fraction form
    126,367.59/174,398.21 = 69,789.90/x
  3. Step 3: Cross multiply
    126,367.59x = 174,398.21 × 69,789.90
  4. Step 4: Simplify right side
    126,367.59x = 12,171,234,595.40
  5. Step 5: Solve for x
    x = 12,171,234,595.40/126,367.59
  6. Step 6: Final answer
    x = 96,316.11

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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.