Home / 136,853.56-188,847.14-76,419.48

Finding the Fourth Proportional to 136,853.56, 188,847.14 and 76,419.48

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Solution

The fourth proportional to 136,853.56, 188,847.14 and 76,419.48 is: 105,452.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,853.56 : 188,847.14 = 76,419.48 : x
  2. Step 2: Convert to fraction form
    136,853.56/188,847.14 = 76,419.48/x
  3. Step 3: Cross multiply
    136,853.56x = 188,847.14 × 76,419.48
  4. Step 4: Simplify right side
    136,853.56x = 14,431,600,238.29
  5. Step 5: Solve for x
    x = 14,431,600,238.29/136,853.56
  6. Step 6: Final answer
    x = 105,452.87

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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.