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Finding the Fourth Proportional to 83,964.70, 125,947.05 and 73,029.70

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Solution

The fourth proportional to 83,964.70, 125,947.05 and 73,029.70 is: 109,544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,964.70 : 125,947.05 = 73,029.70 : x
  2. Step 2: Convert to fraction form
    83,964.70/125,947.05 = 73,029.70/x
  3. Step 3: Cross multiply
    83,964.70x = 125,947.05 × 73,029.70
  4. Step 4: Simplify right side
    83,964.70x = 9,197,875,277.39
  5. Step 5: Solve for x
    x = 9,197,875,277.39/83,964.70
  6. Step 6: Final answer
    x = 109,544.55

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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.