Home / 154,589.36-213,284.90-86,597.15

Finding the Fourth Proportional to 154,589.36, 213,284.90 and 86,597.15

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Solution

The fourth proportional to 154,589.36, 213,284.90 and 86,597.15 is: 119,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,589.36 : 213,284.90 = 86,597.15 : x
  2. Step 2: Convert to fraction form
    154,589.36/213,284.90 = 86,597.15/x
  3. Step 3: Cross multiply
    154,589.36x = 213,284.90 × 86,597.15
  4. Step 4: Simplify right side
    154,589.36x = 18,469,864,045.05
  5. Step 5: Solve for x
    x = 18,469,864,045.05/154,589.36
  6. Step 6: Final answer
    x = 119,476.94

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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.