Home / 137,176.71-189,296.13-75,919.56

Finding the Fourth Proportional to 137,176.71, 189,296.13 and 75,919.56

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Solution

The fourth proportional to 137,176.71, 189,296.13 and 75,919.56 is: 104,764.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,176.71 : 189,296.13 = 75,919.56 : x
  2. Step 2: Convert to fraction form
    137,176.71/189,296.13 = 75,919.56/x
  3. Step 3: Cross multiply
    137,176.71x = 189,296.13 × 75,919.56
  4. Step 4: Simplify right side
    137,176.71x = 14,371,278,899.30
  5. Step 5: Solve for x
    x = 14,371,278,899.30/137,176.71
  6. Step 6: Final answer
    x = 104,764.71

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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.