Home / 129,605.76-178,842.24-73,016.64

Finding the Fourth Proportional to 129,605.76, 178,842.24 and 73,016.64

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Solution

The fourth proportional to 129,605.76, 178,842.24 and 73,016.64 is: 100,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,605.76 : 178,842.24 = 73,016.64 : x
  2. Step 2: Convert to fraction form
    129,605.76/178,842.24 = 73,016.64/x
  3. Step 3: Cross multiply
    129,605.76x = 178,842.24 × 73,016.64
  4. Step 4: Simplify right side
    129,605.76x = 13,058,459,454.87
  5. Step 5: Solve for x
    x = 13,058,459,454.87/129,605.76
  6. Step 6: Final answer
    x = 100,755.24

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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.