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Finding the Fourth Proportional to 99,618.14, 137,473.08 and 56,597.71

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Solution

The fourth proportional to 99,618.14, 137,473.08 and 56,597.71 is: 78,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.14 : 137,473.08 = 56,597.71 : x
  2. Step 2: Convert to fraction form
    99,618.14/137,473.08 = 56,597.71/x
  3. Step 3: Cross multiply
    99,618.14x = 137,473.08 × 56,597.71
  4. Step 4: Simplify right side
    99,618.14x = 7,780,661,514.65
  5. Step 5: Solve for x
    x = 7,780,661,514.65/99,618.14
  6. Step 6: Final answer
    x = 78,104.87

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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.