Home / 189,382.47-261,254.18-123,932.55

Finding the Fourth Proportional to 189,382.47, 261,254.18 and 123,932.55

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Solution

The fourth proportional to 189,382.47, 261,254.18 and 123,932.55 is: 170,965.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,382.47 : 261,254.18 = 123,932.55 : x
  2. Step 2: Convert to fraction form
    189,382.47/261,254.18 = 123,932.55/x
  3. Step 3: Cross multiply
    189,382.47x = 261,254.18 × 123,932.55
  4. Step 4: Simplify right side
    189,382.47x = 32,377,896,725.56
  5. Step 5: Solve for x
    x = 32,377,896,725.56/189,382.47
  6. Step 6: Final answer
    x = 170,965.65

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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.