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Finding the Fourth Proportional to 161,367.92, 222,695.61 and 89,746.40

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Solution

The fourth proportional to 161,367.92, 222,695.61 and 89,746.40 is: 123,854.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,367.92 : 222,695.61 = 89,746.40 : x
  2. Step 2: Convert to fraction form
    161,367.92/222,695.61 = 89,746.40/x
  3. Step 3: Cross multiply
    161,367.92x = 222,695.61 × 89,746.40
  4. Step 4: Simplify right side
    161,367.92x = 19,986,129,850.04
  5. Step 5: Solve for x
    x = 19,986,129,850.04/161,367.92
  6. Step 6: Final answer
    x = 123,854.42

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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.