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Finding the Fourth Proportional to 154,606.80, 231,737.40 and 65,845.20

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Solution

The fourth proportional to 154,606.80, 231,737.40 and 65,845.20 is: 98,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,606.80 : 231,737.40 = 65,845.20 : x
  2. Step 2: Convert to fraction form
    154,606.80/231,737.40 = 65,845.20/x
  3. Step 3: Cross multiply
    154,606.80x = 231,737.40 × 65,845.20
  4. Step 4: Simplify right side
    154,606.80x = 15,258,795,450.48
  5. Step 5: Solve for x
    x = 15,258,795,450.48/154,606.80
  6. Step 6: Final answer
    x = 98,694.21

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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.