Home / 135,531.56-187,028.18-75,104.76

Finding the Fourth Proportional to 135,531.56, 187,028.18 and 75,104.76

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Solution

The fourth proportional to 135,531.56, 187,028.18 and 75,104.76 is: 103,641.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,531.56 : 187,028.18 = 75,104.76 : x
  2. Step 2: Convert to fraction form
    135,531.56/187,028.18 = 75,104.76/x
  3. Step 3: Cross multiply
    135,531.56x = 187,028.18 × 75,104.76
  4. Step 4: Simplify right side
    135,531.56x = 14,046,706,572.14
  5. Step 5: Solve for x
    x = 14,046,706,572.14/135,531.56
  6. Step 6: Final answer
    x = 103,641.59

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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.