Home / 136,045.92-187,714.56-82,320.48

Finding the Fourth Proportional to 136,045.92, 187,714.56 and 82,320.48

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Solution

The fourth proportional to 136,045.92, 187,714.56 and 82,320.48 is: 113,584.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,045.92 : 187,714.56 = 82,320.48 : x
  2. Step 2: Convert to fraction form
    136,045.92/187,714.56 = 82,320.48/x
  3. Step 3: Cross multiply
    136,045.92x = 187,714.56 × 82,320.48
  4. Step 4: Simplify right side
    136,045.92x = 15,452,752,682.19
  5. Step 5: Solve for x
    x = 15,452,752,682.19/136,045.92
  6. Step 6: Final answer
    x = 113,584.83

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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.