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Finding the Fourth Proportional to 161,599.70, 223,005.42 and 89,979.73

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Solution

The fourth proportional to 161,599.70, 223,005.42 and 89,979.73 is: 124,170.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,599.70 : 223,005.42 = 89,979.73 : x
  2. Step 2: Convert to fraction form
    161,599.70/223,005.42 = 89,979.73/x
  3. Step 3: Cross multiply
    161,599.70x = 223,005.42 × 89,979.73
  4. Step 4: Simplify right side
    161,599.70x = 20,065,966,922.62
  5. Step 5: Solve for x
    x = 20,065,966,922.62/161,599.70
  6. Step 6: Final answer
    x = 124,170.82

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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.