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Finding the Fourth Proportional to 154,612.80, 231,746.40 and 88,084.80

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Solution

The fourth proportional to 154,612.80, 231,746.40 and 88,084.80 is: 132,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,612.80 : 231,746.40 = 88,084.80 : x
  2. Step 2: Convert to fraction form
    154,612.80/231,746.40 = 88,084.80/x
  3. Step 3: Cross multiply
    154,612.80x = 231,746.40 × 88,084.80
  4. Step 4: Simplify right side
    154,612.80x = 20,413,335,294.72
  5. Step 5: Solve for x
    x = 20,413,335,294.72/154,612.80
  6. Step 6: Final answer
    x = 132,028.75

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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.