Home / 136,381.76-188,227.68-82,675.52

Finding the Fourth Proportional to 136,381.76, 188,227.68 and 82,675.52

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Solution

The fourth proportional to 136,381.76, 188,227.68 and 82,675.52 is: 114,104.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,381.76 : 188,227.68 = 82,675.52 : x
  2. Step 2: Convert to fraction form
    136,381.76/188,227.68 = 82,675.52/x
  3. Step 3: Cross multiply
    136,381.76x = 188,227.68 × 82,675.52
  4. Step 4: Simplify right side
    136,381.76x = 15,561,821,322.39
  5. Step 5: Solve for x
    x = 15,561,821,322.39/136,381.76
  6. Step 6: Final answer
    x = 114,104.86

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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.