Home / 121,380.72-182,105.64-51,246.96

Finding the Fourth Proportional to 121,380.72, 182,105.64 and 51,246.96

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Solution

The fourth proportional to 121,380.72, 182,105.64 and 51,246.96 is: 76,885.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,380.72 : 182,105.64 = 51,246.96 : x
  2. Step 2: Convert to fraction form
    121,380.72/182,105.64 = 51,246.96/x
  3. Step 3: Cross multiply
    121,380.72x = 182,105.64 × 51,246.96
  4. Step 4: Simplify right side
    121,380.72x = 9,332,360,448.85
  5. Step 5: Solve for x
    x = 9,332,360,448.85/121,380.72
  6. Step 6: Final answer
    x = 76,885.03

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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.