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Finding the Fourth Proportional to 99,473.32, 137,230.02 and 57,022.12

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Solution

The fourth proportional to 99,473.32, 137,230.02 and 57,022.12 is: 78,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,473.32 : 137,230.02 = 57,022.12 : x
  2. Step 2: Convert to fraction form
    99,473.32/137,230.02 = 57,022.12/x
  3. Step 3: Cross multiply
    99,473.32x = 137,230.02 × 57,022.12
  4. Step 4: Simplify right side
    99,473.32x = 7,825,146,668.04
  5. Step 5: Solve for x
    x = 7,825,146,668.04/99,473.32
  6. Step 6: Final answer
    x = 78,665.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.