Home / 154,023.60-231,112.20-87,514.80

Finding the Fourth Proportional to 154,023.60, 231,112.20 and 87,514.80

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Solution

The fourth proportional to 154,023.60, 231,112.20 and 87,514.80 is: 131,315.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,023.60 : 231,112.20 = 87,514.80 : x
  2. Step 2: Convert to fraction form
    154,023.60/231,112.20 = 87,514.80/x
  3. Step 3: Cross multiply
    154,023.60x = 231,112.20 × 87,514.80
  4. Step 4: Simplify right side
    154,023.60x = 20,225,737,960.56
  5. Step 5: Solve for x
    x = 20,225,737,960.56/154,023.60
  6. Step 6: Final answer
    x = 131,315.84

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1.5x scale

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.