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Finding the Fourth Proportional to 187,998.66, 281,932.29 and 75,649.73

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Solution

The fourth proportional to 187,998.66, 281,932.29 and 75,649.73 is: 113,448.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,998.66 : 281,932.29 = 75,649.73 : x
  2. Step 2: Convert to fraction form
    187,998.66/281,932.29 = 75,649.73/x
  3. Step 3: Cross multiply
    187,998.66x = 281,932.29 × 75,649.73
  4. Step 4: Simplify right side
    187,998.66x = 21,328,100,207.12
  5. Step 5: Solve for x
    x = 21,328,100,207.12/187,998.66
  6. Step 6: Final answer
    x = 113,448.15

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1.5x scale

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.