Home / 121,400.78-182,121.97-37,158.85

Finding the Fourth Proportional to 121,400.78, 182,121.97 and 37,158.85

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Solution

The fourth proportional to 121,400.78, 182,121.97 and 37,158.85 is: 55,744.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,400.78 : 182,121.97 = 37,158.85 : x
  2. Step 2: Convert to fraction form
    121,400.78/182,121.97 = 37,158.85/x
  3. Step 3: Cross multiply
    121,400.78x = 182,121.97 × 37,158.85
  4. Step 4: Simplify right side
    121,400.78x = 6,767,443,169.36
  5. Step 5: Solve for x
    x = 6,767,443,169.36/121,400.78
  6. Step 6: Final answer
    x = 55,744.65

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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.