Home / 154,001.80-231,002.70-87,416.20

Finding the Fourth Proportional to 154,001.80, 231,002.70 and 87,416.20

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Solution

The fourth proportional to 154,001.80, 231,002.70 and 87,416.20 is: 131,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,001.80 : 231,002.70 = 87,416.20 : x
  2. Step 2: Convert to fraction form
    154,001.80/231,002.70 = 87,416.20/x
  3. Step 3: Cross multiply
    154,001.80x = 231,002.70 × 87,416.20
  4. Step 4: Simplify right side
    154,001.80x = 20,193,378,223.74
  5. Step 5: Solve for x
    x = 20,193,378,223.74/154,001.80
  6. Step 6: Final answer
    x = 131,124.30

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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.