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Finding the Fourth Proportional to 154,524.60, 231,786.90 and 99,228.60

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Solution

The fourth proportional to 154,524.60, 231,786.90 and 99,228.60 is: 148,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,524.60 : 231,786.90 = 99,228.60 : x
  2. Step 2: Convert to fraction form
    154,524.60/231,786.90 = 99,228.60/x
  3. Step 3: Cross multiply
    154,524.60x = 231,786.90 × 99,228.60
  4. Step 4: Simplify right side
    154,524.60x = 22,999,889,585.34
  5. Step 5: Solve for x
    x = 22,999,889,585.34/154,524.60
  6. Step 6: Final answer
    x = 148,842.90

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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.