Home / 150,192.66-207,265.28-81,281.97

Finding the Fourth Proportional to 150,192.66, 207,265.28 and 81,281.97

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Solution

The fourth proportional to 150,192.66, 207,265.28 and 81,281.97 is: 112,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,192.66 : 207,265.28 = 81,281.97 : x
  2. Step 2: Convert to fraction form
    150,192.66/207,265.28 = 81,281.97/x
  3. Step 3: Cross multiply
    150,192.66x = 207,265.28 × 81,281.97
  4. Step 4: Simplify right side
    150,192.66x = 16,846,929,864.59
  5. Step 5: Solve for x
    x = 16,846,929,864.59/150,192.66
  6. Step 6: Final answer
    x = 112,168.80

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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.