Home / 189,288.33-261,217.38-108,721.05

Finding the Fourth Proportional to 189,288.33, 261,217.38 and 108,721.05

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Solution

The fourth proportional to 189,288.33, 261,217.38 and 108,721.05 is: 150,034.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,288.33 : 261,217.38 = 108,721.05 : x
  2. Step 2: Convert to fraction form
    189,288.33/261,217.38 = 108,721.05/x
  3. Step 3: Cross multiply
    189,288.33x = 261,217.38 × 108,721.05
  4. Step 4: Simplify right side
    189,288.33x = 28,399,827,831.85
  5. Step 5: Solve for x
    x = 28,399,827,831.85/189,288.33
  6. Step 6: Final answer
    x = 150,034.75

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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.