Home / 83,158.40-124,815.90-43,743.80

Finding the Fourth Proportional to 83,158.40, 124,815.90 and 43,743.80

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Solution

The fourth proportional to 83,158.40, 124,815.90 and 43,743.80 is: 65,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,158.40 : 124,815.90 = 43,743.80 : x
  2. Step 2: Convert to fraction form
    83,158.40/124,815.90 = 43,743.80/x
  3. Step 3: Cross multiply
    83,158.40x = 124,815.90 × 43,743.80
  4. Step 4: Simplify right side
    83,158.40x = 5,459,921,766.42
  5. Step 5: Solve for x
    x = 5,459,921,766.42/83,158.40
  6. Step 6: Final answer
    x = 65,656.89

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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.