Home / 109,589.22-151,221.96-61,839.72

Finding the Fourth Proportional to 109,589.22, 151,221.96 and 61,839.72

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Solution

The fourth proportional to 109,589.22, 151,221.96 and 61,839.72 is: 85,332.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,589.22 : 151,221.96 = 61,839.72 : x
  2. Step 2: Convert to fraction form
    109,589.22/151,221.96 = 61,839.72/x
  3. Step 3: Cross multiply
    109,589.22x = 151,221.96 × 61,839.72
  4. Step 4: Simplify right side
    109,589.22x = 9,351,523,664.25
  5. Step 5: Solve for x
    x = 9,351,523,664.25/109,589.22
  6. Step 6: Final answer
    x = 85,332.51

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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.