Home / 189,284.40-261,211.92-108,717.12

Finding the Fourth Proportional to 189,284.40, 261,211.92 and 108,717.12

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Solution

The fourth proportional to 189,284.40, 261,211.92 and 108,717.12 is: 150,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,284.40 : 261,211.92 = 108,717.12 : x
  2. Step 2: Convert to fraction form
    189,284.40/261,211.92 = 108,717.12/x
  3. Step 3: Cross multiply
    189,284.40x = 261,211.92 × 108,717.12
  4. Step 4: Simplify right side
    189,284.40x = 28,398,207,652.07
  5. Step 5: Solve for x
    x = 28,398,207,652.07/189,284.40
  6. Step 6: Final answer
    x = 150,029.31

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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.