Home / 125,456.64-188,183.04-42,408.96

Finding the Fourth Proportional to 125,456.64, 188,183.04 and 42,408.96

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Solution

The fourth proportional to 125,456.64, 188,183.04 and 42,408.96 is: 63,612.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,456.64 : 188,183.04 = 42,408.96 : x
  2. Step 2: Convert to fraction form
    125,456.64/188,183.04 = 42,408.96/x
  3. Step 3: Cross multiply
    125,456.64x = 188,183.04 × 42,408.96
  4. Step 4: Simplify right side
    125,456.64x = 7,980,647,016.04
  5. Step 5: Solve for x
    x = 7,980,647,016.04/125,456.64
  6. Step 6: Final answer
    x = 63,612.79

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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.