Home / 154,052.20-231,110.70-87,437.80

Finding the Fourth Proportional to 154,052.20, 231,110.70 and 87,437.80

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Solution

The fourth proportional to 154,052.20, 231,110.70 and 87,437.80 is: 131,175.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,052.20 : 231,110.70 = 87,437.80 : x
  2. Step 2: Convert to fraction form
    154,052.20/231,110.70 = 87,437.80/x
  3. Step 3: Cross multiply
    154,052.20x = 231,110.70 × 87,437.80
  4. Step 4: Simplify right side
    154,052.20x = 20,207,811,164.46
  5. Step 5: Solve for x
    x = 20,207,811,164.46/154,052.20
  6. Step 6: Final answer
    x = 131,175.09

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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.