Home / 135,902.31-187,540.05-75,476.84

Finding the Fourth Proportional to 135,902.31, 187,540.05 and 75,476.84

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Solution

The fourth proportional to 135,902.31, 187,540.05 and 75,476.84 is: 104,155.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,902.31 : 187,540.05 = 75,476.84 : x
  2. Step 2: Convert to fraction form
    135,902.31/187,540.05 = 75,476.84/x
  3. Step 3: Cross multiply
    135,902.31x = 187,540.05 × 75,476.84
  4. Step 4: Simplify right side
    135,902.31x = 14,154,930,487.52
  5. Step 5: Solve for x
    x = 14,154,930,487.52/135,902.31
  6. Step 6: Final answer
    x = 104,155.19

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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.