Home / 135,877.85-187,505.18-75,452.34

Finding the Fourth Proportional to 135,877.85, 187,505.18 and 75,452.34

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Solution

The fourth proportional to 135,877.85, 187,505.18 and 75,452.34 is: 104,120.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,877.85 : 187,505.18 = 75,452.34 : x
  2. Step 2: Convert to fraction form
    135,877.85/187,505.18 = 75,452.34/x
  3. Step 3: Cross multiply
    135,877.85x = 187,505.18 × 75,452.34
  4. Step 4: Simplify right side
    135,877.85x = 14,147,703,619.88
  5. Step 5: Solve for x
    x = 14,147,703,619.88/135,877.85
  6. Step 6: Final answer
    x = 104,120.75

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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.