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Finding the Fourth Proportional to 83,251.80, 124,877.70 and 82,733.40

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Solution

The fourth proportional to 83,251.80, 124,877.70 and 82,733.40 is: 124,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,251.80 : 124,877.70 = 82,733.40 : x
  2. Step 2: Convert to fraction form
    83,251.80/124,877.70 = 82,733.40/x
  3. Step 3: Cross multiply
    83,251.80x = 124,877.70 × 82,733.40
  4. Step 4: Simplify right side
    83,251.80x = 10,331,556,705.18
  5. Step 5: Solve for x
    x = 10,331,556,705.18/83,251.80
  6. Step 6: Final answer
    x = 124,100.10

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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.