Home / 83,747.70-125,621.55-82,872.90

Finding the Fourth Proportional to 83,747.70, 125,621.55 and 82,872.90

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Solution

The fourth proportional to 83,747.70, 125,621.55 and 82,872.90 is: 124,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,747.70 : 125,621.55 = 82,872.90 : x
  2. Step 2: Convert to fraction form
    83,747.70/125,621.55 = 82,872.90/x
  3. Step 3: Cross multiply
    83,747.70x = 125,621.55 × 82,872.90
  4. Step 4: Simplify right side
    83,747.70x = 10,410,622,151.00
  5. Step 5: Solve for x
    x = 10,410,622,151.00/83,747.70
  6. Step 6: Final answer
    x = 124,309.35

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1.5x scale

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.