Home / 125,982.42-173,789.55-74,958.90

Finding the Fourth Proportional to 125,982.42, 173,789.55 and 74,958.90

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Solution

The fourth proportional to 125,982.42, 173,789.55 and 74,958.90 is: 103,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,982.42 : 173,789.55 = 74,958.90 : x
  2. Step 2: Convert to fraction form
    125,982.42/173,789.55 = 74,958.90/x
  3. Step 3: Cross multiply
    125,982.42x = 173,789.55 × 74,958.90
  4. Step 4: Simplify right side
    125,982.42x = 13,027,073,499.50
  5. Step 5: Solve for x
    x = 13,027,073,499.50/125,982.42
  6. Step 6: Final answer
    x = 103,403.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.