Home / 117,934.20-176,642.10-71,105.40

Finding the Fourth Proportional to 117,934.20, 176,642.10 and 71,105.40

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Solution

The fourth proportional to 117,934.20, 176,642.10 and 71,105.40 is: 106,501.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,934.20 : 176,642.10 = 71,105.40 : x
  2. Step 2: Convert to fraction form
    117,934.20/176,642.10 = 71,105.40/x
  3. Step 3: Cross multiply
    117,934.20x = 176,642.10 × 71,105.40
  4. Step 4: Simplify right side
    117,934.20x = 12,560,207,177.34
  5. Step 5: Solve for x
    x = 12,560,207,177.34/117,934.20
  6. Step 6: Final answer
    x = 106,501.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.