Home / 83,434.15-115,139.24-45,194.12

Finding the Fourth Proportional to 83,434.15, 115,139.24 and 45,194.12

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Solution

The fourth proportional to 83,434.15, 115,139.24 and 45,194.12 is: 62,367.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,434.15 : 115,139.24 = 45,194.12 : x
  2. Step 2: Convert to fraction form
    83,434.15/115,139.24 = 45,194.12/x
  3. Step 3: Cross multiply
    83,434.15x = 115,139.24 × 45,194.12
  4. Step 4: Simplify right side
    83,434.15x = 5,203,616,428.85
  5. Step 5: Solve for x
    x = 5,203,616,428.85/83,434.15
  6. Step 6: Final answer
    x = 62,367.94

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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.