Home / 135,776.91-187,374.17-75,351.46

Finding the Fourth Proportional to 135,776.91, 187,374.17 and 75,351.46

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Solution

The fourth proportional to 135,776.91, 187,374.17 and 75,351.46 is: 103,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,776.91 : 187,374.17 = 75,351.46 : x
  2. Step 2: Convert to fraction form
    135,776.91/187,374.17 = 75,351.46/x
  3. Step 3: Cross multiply
    135,776.91x = 187,374.17 × 75,351.46
  4. Step 4: Simplify right side
    135,776.91x = 14,118,917,884.25
  5. Step 5: Solve for x
    x = 14,118,917,884.25/135,776.91
  6. Step 6: Final answer
    x = 103,986.15

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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.