Home / 154,229.25-212,834.89-86,245.44

Finding the Fourth Proportional to 154,229.25, 212,834.89 and 86,245.44

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Solution

The fourth proportional to 154,229.25, 212,834.89 and 86,245.44 is: 119,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,229.25 : 212,834.89 = 86,245.44 : x
  2. Step 2: Convert to fraction form
    154,229.25/212,834.89 = 86,245.44/x
  3. Step 3: Cross multiply
    154,229.25x = 212,834.89 × 86,245.44
  4. Step 4: Simplify right side
    154,229.25x = 18,356,038,519.79
  5. Step 5: Solve for x
    x = 18,356,038,519.79/154,229.25
  6. Step 6: Final answer
    x = 119,017.88

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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.