Home / 135,613.16-187,157.20-75,202.74

Finding the Fourth Proportional to 135,613.16, 187,157.20 and 75,202.74

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Solution

The fourth proportional to 135,613.16, 187,157.20 and 75,202.74 is: 103,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,613.16 : 187,157.20 = 75,202.74 : x
  2. Step 2: Convert to fraction form
    135,613.16/187,157.20 = 75,202.74/x
  3. Step 3: Cross multiply
    135,613.16x = 187,157.20 × 75,202.74
  4. Step 4: Simplify right side
    135,613.16x = 14,074,734,250.73
  5. Step 5: Solve for x
    x = 14,074,734,250.73/135,613.16
  6. Step 6: Final answer
    x = 103,785.90

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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.