Home / 166,335.70-229,543.38-89,854.78

Finding the Fourth Proportional to 166,335.70, 229,543.38 and 89,854.78

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Solution

The fourth proportional to 166,335.70, 229,543.38 and 89,854.78 is: 123,999.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,335.70 : 229,543.38 = 89,854.78 : x
  2. Step 2: Convert to fraction form
    166,335.70/229,543.38 = 89,854.78/x
  3. Step 3: Cross multiply
    166,335.70x = 229,543.38 × 89,854.78
  4. Step 4: Simplify right side
    166,335.70x = 20,625,569,910.36
  5. Step 5: Solve for x
    x = 20,625,569,910.36/166,335.70
  6. Step 6: Final answer
    x = 123,999.66

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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.