Home / 189,320.46-261,253.44-108,691.23

Finding the Fourth Proportional to 189,320.46, 261,253.44 and 108,691.23

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Solution

The fourth proportional to 189,320.46, 261,253.44 and 108,691.23 is: 149,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,320.46 : 261,253.44 = 108,691.23 : x
  2. Step 2: Convert to fraction form
    189,320.46/261,253.44 = 108,691.23/x
  3. Step 3: Cross multiply
    189,320.46x = 261,253.44 × 108,691.23
  4. Step 4: Simplify right side
    189,320.46x = 28,395,957,735.33
  5. Step 5: Solve for x
    x = 28,395,957,735.33/189,320.46
  6. Step 6: Final answer
    x = 149,988.85

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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.