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Finding the Fourth Proportional to 83,752.52, 126,204.74 and 69,286.40

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Solution

The fourth proportional to 83,752.52, 126,204.74 and 69,286.40 is: 104,406.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,752.52 : 126,204.74 = 69,286.40 : x
  2. Step 2: Convert to fraction form
    83,752.52/126,204.74 = 69,286.40/x
  3. Step 3: Cross multiply
    83,752.52x = 126,204.74 × 69,286.40
  4. Step 4: Simplify right side
    83,752.52x = 8,744,272,097.54
  5. Step 5: Solve for x
    x = 8,744,272,097.54/83,752.52
  6. Step 6: Final answer
    x = 104,406.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.