Home / 200,040.10-276,081.45-115,160.74

Finding the Fourth Proportional to 200,040.10, 276,081.45 and 115,160.74

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Solution

The fourth proportional to 200,040.10, 276,081.45 and 115,160.74 is: 158,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,040.10 : 276,081.45 = 115,160.74 : x
  2. Step 2: Convert to fraction form
    200,040.10/276,081.45 = 115,160.74/x
  3. Step 3: Cross multiply
    200,040.10x = 276,081.45 × 115,160.74
  4. Step 4: Simplify right side
    200,040.10x = 31,793,744,082.27
  5. Step 5: Solve for x
    x = 31,793,744,082.27/200,040.10
  6. Step 6: Final answer
    x = 158,936.85

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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.