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Finding the Fourth Proportional to 108,748.44, 150,052.02 and 65,719.20

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Solution

The fourth proportional to 108,748.44, 150,052.02 and 65,719.20 is: 90,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,748.44 : 150,052.02 = 65,719.20 : x
  2. Step 2: Convert to fraction form
    108,748.44/150,052.02 = 65,719.20/x
  3. Step 3: Cross multiply
    108,748.44x = 150,052.02 × 65,719.20
  4. Step 4: Simplify right side
    108,748.44x = 9,861,298,712.78
  5. Step 5: Solve for x
    x = 9,861,298,712.78/108,748.44
  6. Step 6: Final answer
    x = 90,679.91

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Why These Related Problems?

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