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Finding the Fourth Proportional to 123,670.60, 185,505.90 and 98,301.40

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Solution

The fourth proportional to 123,670.60, 185,505.90 and 98,301.40 is: 147,452.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,670.60 : 185,505.90 = 98,301.40 : x
  2. Step 2: Convert to fraction form
    123,670.60/185,505.90 = 98,301.40/x
  3. Step 3: Cross multiply
    123,670.60x = 185,505.90 × 98,301.40
  4. Step 4: Simplify right side
    123,670.60x = 18,235,489,678.26
  5. Step 5: Solve for x
    x = 18,235,489,678.26/123,670.60
  6. Step 6: Final answer
    x = 147,452.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.