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Finding the Fourth Proportional to 161,901.92, 223,425.92 and 90,286.60

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Solution

The fourth proportional to 161,901.92, 223,425.92 and 90,286.60 is: 124,596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,901.92 : 223,425.92 = 90,286.60 : x
  2. Step 2: Convert to fraction form
    161,901.92/223,425.92 = 90,286.60/x
  3. Step 3: Cross multiply
    161,901.92x = 223,425.92 × 90,286.60
  4. Step 4: Simplify right side
    161,901.92x = 20,172,366,668.67
  5. Step 5: Solve for x
    x = 20,172,366,668.67/161,901.92
  6. Step 6: Final answer
    x = 124,596.22

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1.5x scale

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.