Home / 154,144.62-212,722.20-86,162.94

Finding the Fourth Proportional to 154,144.62, 212,722.20 and 86,162.94

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Solution

The fourth proportional to 154,144.62, 212,722.20 and 86,162.94 is: 118,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,144.62 : 212,722.20 = 86,162.94 : x
  2. Step 2: Convert to fraction form
    154,144.62/212,722.20 = 86,162.94/x
  3. Step 3: Cross multiply
    154,144.62x = 212,722.20 × 86,162.94
  4. Step 4: Simplify right side
    154,144.62x = 18,328,770,155.27
  5. Step 5: Solve for x
    x = 18,328,770,155.27/154,144.62
  6. Step 6: Final answer
    x = 118,906.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.