Home / 115,204.28-172,824.64-40,322.61

Finding the Fourth Proportional to 115,204.28, 172,824.64 and 40,322.61

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Solution

The fourth proportional to 115,204.28, 172,824.64 and 40,322.61 is: 60,490.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,204.28 : 172,824.64 = 40,322.61 : x
  2. Step 2: Convert to fraction form
    115,204.28/172,824.64 = 40,322.61/x
  3. Step 3: Cross multiply
    115,204.28x = 172,824.64 × 40,322.61
  4. Step 4: Simplify right side
    115,204.28x = 6,968,740,456.30
  5. Step 5: Solve for x
    x = 6,968,740,456.30/115,204.28
  6. Step 6: Final answer
    x = 60,490.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.