Home / 187,889.40-281,764.13-75,531.80

Finding the Fourth Proportional to 187,889.40, 281,764.13 and 75,531.80

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Solution

The fourth proportional to 187,889.40, 281,764.13 and 75,531.80 is: 113,269.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,889.40 : 281,764.13 = 75,531.80 : x
  2. Step 2: Convert to fraction form
    187,889.40/281,764.13 = 75,531.80/x
  3. Step 3: Cross multiply
    187,889.40x = 281,764.13 × 75,531.80
  4. Step 4: Simplify right side
    187,889.40x = 21,282,151,914.33
  5. Step 5: Solve for x
    x = 21,282,151,914.33/187,889.40
  6. Step 6: Final answer
    x = 113,269.57

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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.