Home / 135,680.74-187,250.60-75,270.83

Finding the Fourth Proportional to 135,680.74, 187,250.60 and 75,270.83

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Solution

The fourth proportional to 135,680.74, 187,250.60 and 75,270.83 is: 103,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,680.74 : 187,250.60 = 75,270.83 : x
  2. Step 2: Convert to fraction form
    135,680.74/187,250.60 = 75,270.83/x
  3. Step 3: Cross multiply
    135,680.74x = 187,250.60 × 75,270.83
  4. Step 4: Simplify right side
    135,680.74x = 14,094,507,331.92
  5. Step 5: Solve for x
    x = 14,094,507,331.92/135,680.74
  6. Step 6: Final answer
    x = 103,879.94

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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.