Home / 115,517.44-172,505.48-109,612.96

Finding the Fourth Proportional to 115,517.44, 172,505.48 and 109,612.96

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Solution

The fourth proportional to 115,517.44, 172,505.48 and 109,612.96 is: 163,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,517.44 : 172,505.48 = 109,612.96 : x
  2. Step 2: Convert to fraction form
    115,517.44/172,505.48 = 109,612.96/x
  3. Step 3: Cross multiply
    115,517.44x = 172,505.48 × 109,612.96
  4. Step 4: Simplify right side
    115,517.44x = 18,908,836,279.02
  5. Step 5: Solve for x
    x = 18,908,836,279.02/115,517.44
  6. Step 6: Final answer
    x = 163,688.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.