Home / 126,100.80-174,013.92-80,714.88

Finding the Fourth Proportional to 126,100.80, 174,013.92 and 80,714.88

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Solution

The fourth proportional to 126,100.80, 174,013.92 and 80,714.88 is: 111,383.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,100.80 : 174,013.92 = 80,714.88 : x
  2. Step 2: Convert to fraction form
    126,100.80/174,013.92 = 80,714.88/x
  3. Step 3: Cross multiply
    126,100.80x = 174,013.92 × 80,714.88
  4. Step 4: Simplify right side
    126,100.80x = 14,045,512,671.13
  5. Step 5: Solve for x
    x = 14,045,512,671.13/126,100.80
  6. Step 6: Final answer
    x = 111,383.22

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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.