Home / 135,840.26-187,461.65-75,414.80

Finding the Fourth Proportional to 135,840.26, 187,461.65 and 75,414.80

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Solution

The fourth proportional to 135,840.26, 187,461.65 and 75,414.80 is: 104,073.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,840.26 : 187,461.65 = 75,414.80 : x
  2. Step 2: Convert to fraction form
    135,840.26/187,461.65 = 75,414.80/x
  3. Step 3: Cross multiply
    135,840.26x = 187,461.65 × 75,414.80
  4. Step 4: Simplify right side
    135,840.26x = 14,137,383,499.61
  5. Step 5: Solve for x
    x = 14,137,383,499.61/135,840.26
  6. Step 6: Final answer
    x = 104,073.59

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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.