Home / 135,839.10-187,447.56-75,404.16

Finding the Fourth Proportional to 135,839.10, 187,447.56 and 75,404.16

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Solution

The fourth proportional to 135,839.10, 187,447.56 and 75,404.16 is: 104,051.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,839.10 : 187,447.56 = 75,404.16 : x
  2. Step 2: Convert to fraction form
    135,839.10/187,447.56 = 75,404.16/x
  3. Step 3: Cross multiply
    135,839.10x = 187,447.56 × 75,404.16
  4. Step 4: Simplify right side
    135,839.10x = 14,134,325,805.85
  5. Step 5: Solve for x
    x = 14,134,325,805.85/135,839.10
  6. Step 6: Final answer
    x = 104,051.97

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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.