Home / 84,580.10-126,902.55-83,251.70

Finding the Fourth Proportional to 84,580.10, 126,902.55 and 83,251.70

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Solution

The fourth proportional to 84,580.10, 126,902.55 and 83,251.70 is: 124,909.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,580.10 : 126,902.55 = 83,251.70 : x
  2. Step 2: Convert to fraction form
    84,580.10/126,902.55 = 83,251.70/x
  3. Step 3: Cross multiply
    84,580.10x = 126,902.55 × 83,251.70
  4. Step 4: Simplify right side
    84,580.10x = 10,564,853,021.84
  5. Step 5: Solve for x
    x = 10,564,853,021.84/84,580.10
  6. Step 6: Final answer
    x = 124,909.44

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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.