Home / 83,703.11-125,423.37-71,171.60

Finding the Fourth Proportional to 83,703.11, 125,423.37 and 71,171.60

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Solution

The fourth proportional to 83,703.11, 125,423.37 and 71,171.60 is: 106,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,703.11 : 125,423.37 = 71,171.60 : x
  2. Step 2: Convert to fraction form
    83,703.11/125,423.37 = 71,171.60/x
  3. Step 3: Cross multiply
    83,703.11x = 125,423.37 × 71,171.60
  4. Step 4: Simplify right side
    83,703.11x = 8,926,581,293.18
  5. Step 5: Solve for x
    x = 8,926,581,293.18/83,703.11
  6. Step 6: Final answer
    x = 106,645.76

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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.