Home / 108,291.78-149,382.66-62,964.75

Finding the Fourth Proportional to 108,291.78, 149,382.66 and 62,964.75

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Solution

The fourth proportional to 108,291.78, 149,382.66 and 62,964.75 is: 86,856.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,291.78 : 149,382.66 = 62,964.75 : x
  2. Step 2: Convert to fraction form
    108,291.78/149,382.66 = 62,964.75/x
  3. Step 3: Cross multiply
    108,291.78x = 149,382.66 × 62,964.75
  4. Step 4: Simplify right side
    108,291.78x = 9,405,841,841.24
  5. Step 5: Solve for x
    x = 9,405,841,841.24/108,291.78
  6. Step 6: Final answer
    x = 86,856.47

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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.