Home / 189,244.15-261,178.83-108,642.26

Finding the Fourth Proportional to 189,244.15, 261,178.83 and 108,642.26

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Solution

The fourth proportional to 189,244.15, 261,178.83 and 108,642.26 is: 149,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,244.15 : 261,178.83 = 108,642.26 : x
  2. Step 2: Convert to fraction form
    189,244.15/261,178.83 = 108,642.26/x
  3. Step 3: Cross multiply
    189,244.15x = 261,178.83 × 108,642.26
  4. Step 4: Simplify right side
    189,244.15x = 28,375,059,008.30
  5. Step 5: Solve for x
    x = 28,375,059,008.30/189,244.15
  6. Step 6: Final answer
    x = 149,938.90

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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.