Home / 126,085.38-173,930.19-80,714.55

Finding the Fourth Proportional to 126,085.38, 173,930.19 and 80,714.55

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Solution

The fourth proportional to 126,085.38, 173,930.19 and 80,714.55 is: 111,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,085.38 : 173,930.19 = 80,714.55 : x
  2. Step 2: Convert to fraction form
    126,085.38/173,930.19 = 80,714.55/x
  3. Step 3: Cross multiply
    126,085.38x = 173,930.19 × 80,714.55
  4. Step 4: Simplify right side
    126,085.38x = 14,038,697,017.26
  5. Step 5: Solve for x
    x = 14,038,697,017.26/126,085.38
  6. Step 6: Final answer
    x = 111,342.78

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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.