Home / 154,586.10-231,879.15-115,220.10

Finding the Fourth Proportional to 154,586.10, 231,879.15 and 115,220.10

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Solution

The fourth proportional to 154,586.10, 231,879.15 and 115,220.10 is: 172,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,586.10 : 231,879.15 = 115,220.10 : x
  2. Step 2: Convert to fraction form
    154,586.10/231,879.15 = 115,220.10/x
  3. Step 3: Cross multiply
    154,586.10x = 231,879.15 × 115,220.10
  4. Step 4: Simplify right side
    154,586.10x = 26,717,138,850.92
  5. Step 5: Solve for x
    x = 26,717,138,850.92/154,586.10
  6. Step 6: Final answer
    x = 172,830.15

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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.