Home / 154,047.60-231,148.20-87,538.80

Finding the Fourth Proportional to 154,047.60, 231,148.20 and 87,538.80

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Solution

The fourth proportional to 154,047.60, 231,148.20 and 87,538.80 is: 131,351.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047.60 : 231,148.20 = 87,538.80 : x
  2. Step 2: Convert to fraction form
    154,047.60/231,148.20 = 87,538.80/x
  3. Step 3: Cross multiply
    154,047.60x = 231,148.20 × 87,538.80
  4. Step 4: Simplify right side
    154,047.60x = 20,234,436,050.16
  5. Step 5: Solve for x
    x = 20,234,436,050.16/154,047.60
  6. Step 6: Final answer
    x = 131,351.84

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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.