Home / 135,636.31-187,197.48-75,220.39

Finding the Fourth Proportional to 135,636.31, 187,197.48 and 75,220.39

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Solution

The fourth proportional to 135,636.31, 187,197.48 and 75,220.39 is: 103,814.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,636.31 : 187,197.48 = 75,220.39 : x
  2. Step 2: Convert to fraction form
    135,636.31/187,197.48 = 75,220.39/x
  3. Step 3: Cross multiply
    135,636.31x = 187,197.48 × 75,220.39
  4. Step 4: Simplify right side
    135,636.31x = 14,081,067,452.62
  5. Step 5: Solve for x
    x = 14,081,067,452.62/135,636.31
  6. Step 6: Final answer
    x = 103,814.88

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1.5x scale

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.