Home / 84,634.20-126,951.30-80,746.20

Finding the Fourth Proportional to 84,634.20, 126,951.30 and 80,746.20

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Solution

The fourth proportional to 84,634.20, 126,951.30 and 80,746.20 is: 121,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,634.20 : 126,951.30 = 80,746.20 : x
  2. Step 2: Convert to fraction form
    84,634.20/126,951.30 = 80,746.20/x
  3. Step 3: Cross multiply
    84,634.20x = 126,951.30 × 80,746.20
  4. Step 4: Simplify right side
    84,634.20x = 10,250,835,060.06
  5. Step 5: Solve for x
    x = 10,250,835,060.06/84,634.20
  6. Step 6: Final answer
    x = 121,119.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.