Home / 117,719.20-176,348.40-70,832.80

Finding the Fourth Proportional to 117,719.20, 176,348.40 and 70,832.80

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Solution

The fourth proportional to 117,719.20, 176,348.40 and 70,832.80 is: 106,110.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,719.20 : 176,348.40 = 70,832.80 : x
  2. Step 2: Convert to fraction form
    117,719.20/176,348.40 = 70,832.80/x
  3. Step 3: Cross multiply
    117,719.20x = 176,348.40 × 70,832.80
  4. Step 4: Simplify right side
    117,719.20x = 12,491,250,947.52
  5. Step 5: Solve for x
    x = 12,491,250,947.52/117,719.20
  6. Step 6: Final answer
    x = 106,110.57

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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.