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Finding the Fourth Proportional to 108,720.34, 150,035.15 and 60,972.66

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Solution

The fourth proportional to 108,720.34, 150,035.15 and 60,972.66 is: 84,142.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,720.34 : 150,035.15 = 60,972.66 : x
  2. Step 2: Convert to fraction form
    108,720.34/150,035.15 = 60,972.66/x
  3. Step 3: Cross multiply
    108,720.34x = 150,035.15 × 60,972.66
  4. Step 4: Simplify right side
    108,720.34x = 9,148,042,341.43
  5. Step 5: Solve for x
    x = 9,148,042,341.43/108,720.34
  6. Step 6: Final answer
    x = 84,142.88

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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.