Home / 166,617.15-229,930.62-90,135.95

Finding the Fourth Proportional to 166,617.15, 229,930.62 and 90,135.95

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Solution

The fourth proportional to 166,617.15, 229,930.62 and 90,135.95 is: 124,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,617.15 : 229,930.62 = 90,135.95 : x
  2. Step 2: Convert to fraction form
    166,617.15/229,930.62 = 90,135.95/x
  3. Step 3: Cross multiply
    166,617.15x = 229,930.62 × 90,135.95
  4. Step 4: Simplify right side
    166,617.15x = 20,725,013,718.14
  5. Step 5: Solve for x
    x = 20,725,013,718.14/166,617.15
  6. Step 6: Final answer
    x = 124,387.04

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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.