Home / 154,589.11-213,284.55-86,596.90

Finding the Fourth Proportional to 154,589.11, 213,284.55 and 86,596.90

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Solution

The fourth proportional to 154,589.11, 213,284.55 and 86,596.90 is: 119,476.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,589.11 : 213,284.55 = 86,596.90 : x
  2. Step 2: Convert to fraction form
    154,589.11/213,284.55 = 86,596.90/x
  3. Step 3: Cross multiply
    154,589.11x = 213,284.55 × 86,596.90
  4. Step 4: Simplify right side
    154,589.11x = 18,469,780,847.90
  5. Step 5: Solve for x
    x = 18,469,780,847.90/154,589.11
  6. Step 6: Final answer
    x = 119,476.60

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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.