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Finding the Fourth Proportional to 68,864.60, 103,151.10 and 60,116.60

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Solution

The fourth proportional to 68,864.60, 103,151.10 and 60,116.60 is: 90,047.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,864.60 : 103,151.10 = 60,116.60 : x
  2. Step 2: Convert to fraction form
    68,864.60/103,151.10 = 60,116.60/x
  3. Step 3: Cross multiply
    68,864.60x = 103,151.10 × 60,116.60
  4. Step 4: Simplify right side
    68,864.60x = 6,201,093,418.26
  5. Step 5: Solve for x
    x = 6,201,093,418.26/68,864.60
  6. Step 6: Final answer
    x = 90,047.62

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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.