Home / 135,778.01-187,370.79-75,348.15

Finding the Fourth Proportional to 135,778.01, 187,370.79 and 75,348.15

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Solution

The fourth proportional to 135,778.01, 187,370.79 and 75,348.15 is: 103,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,778.01 : 187,370.79 = 75,348.15 : x
  2. Step 2: Convert to fraction form
    135,778.01/187,370.79 = 75,348.15/x
  3. Step 3: Cross multiply
    135,778.01x = 187,370.79 × 75,348.15
  4. Step 4: Simplify right side
    135,778.01x = 14,118,042,390.54
  5. Step 5: Solve for x
    x = 14,118,042,390.54/135,778.01
  6. Step 6: Final answer
    x = 103,978.86

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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.