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Finding the Fourth Proportional to 159,874.65, 220,621.19 and 88,254.45

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Solution

The fourth proportional to 159,874.65, 220,621.19 and 88,254.45 is: 121,787.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,874.65 : 220,621.19 = 88,254.45 : x
  2. Step 2: Convert to fraction form
    159,874.65/220,621.19 = 88,254.45/x
  3. Step 3: Cross multiply
    159,874.65x = 220,621.19 × 88,254.45
  4. Step 4: Simplify right side
    159,874.65x = 19,470,801,340.52
  5. Step 5: Solve for x
    x = 19,470,801,340.52/159,874.65
  6. Step 6: Final answer
    x = 121,787.92

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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.