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Finding the Fourth Proportional to 145,479, 200,763.87 and 88,120.47

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Solution

The fourth proportional to 145,479, 200,763.87 and 88,120.47 is: 121,607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,479 : 200,763.87 = 88,120.47 : x
  2. Step 2: Convert to fraction form
    145,479/200,763.87 = 88,120.47/x
  3. Step 3: Cross multiply
    145,479x = 200,763.87 × 88,120.47
  4. Step 4: Simplify right side
    145,479x = 17,691,406,583.42
  5. Step 5: Solve for x
    x = 17,691,406,583.42/145,479
  6. Step 6: Final answer
    x = 121,607.97

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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.