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Finding the Fourth Proportional to 166,348, 229,565.91 and 90,901.36

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Solution

The fourth proportional to 166,348, 229,565.91 and 90,901.36 is: 125,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,348 : 229,565.91 = 90,901.36 : x
  2. Step 2: Convert to fraction form
    166,348/229,565.91 = 90,901.36/x
  3. Step 3: Cross multiply
    166,348x = 229,565.91 × 90,901.36
  4. Step 4: Simplify right side
    166,348x = 20,867,853,428.64
  5. Step 5: Solve for x
    x = 20,867,853,428.64/166,348
  6. Step 6: Final answer
    x = 125,446.98

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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.