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Finding the Fourth Proportional to 159,621.22, 220,274.66 and 88,007.91

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Solution

The fourth proportional to 159,621.22, 220,274.66 and 88,007.91 is: 121,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,621.22 : 220,274.66 = 88,007.91 : x
  2. Step 2: Convert to fraction form
    159,621.22/220,274.66 = 88,007.91/x
  3. Step 3: Cross multiply
    159,621.22x = 220,274.66 × 88,007.91
  4. Step 4: Simplify right side
    159,621.22x = 19,385,912,452.56
  5. Step 5: Solve for x
    x = 19,385,912,452.56/159,621.22
  6. Step 6: Final answer
    x = 121,449.47

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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.