Home / 108,861.87-150,229.26-61,115.31

Finding the Fourth Proportional to 108,861.87, 150,229.26 and 61,115.31

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Solution

The fourth proportional to 108,861.87, 150,229.26 and 61,115.31 is: 84,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,861.87 : 150,229.26 = 61,115.31 : x
  2. Step 2: Convert to fraction form
    108,861.87/150,229.26 = 61,115.31/x
  3. Step 3: Cross multiply
    108,861.87x = 150,229.26 × 61,115.31
  4. Step 4: Simplify right side
    108,861.87x = 9,181,307,795.97
  5. Step 5: Solve for x
    x = 9,181,307,795.97/108,861.87
  6. Step 6: Final answer
    x = 84,339.06

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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.