Home / 125,867.35-188,919.69-45,982.72

Finding the Fourth Proportional to 125,867.35, 188,919.69 and 45,982.72

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Solution

The fourth proportional to 125,867.35, 188,919.69 and 45,982.72 is: 69,017.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,867.35 : 188,919.69 = 45,982.72 : x
  2. Step 2: Convert to fraction form
    125,867.35/188,919.69 = 45,982.72/x
  3. Step 3: Cross multiply
    125,867.35x = 188,919.69 × 45,982.72
  4. Step 4: Simplify right side
    125,867.35x = 8,687,041,207.76
  5. Step 5: Solve for x
    x = 8,687,041,207.76/125,867.35
  6. Step 6: Final answer
    x = 69,017.43

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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.