Home / 117,961.20-176,826.60-105,519.60

Finding the Fourth Proportional to 117,961.20, 176,826.60 and 105,519.60

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Solution

The fourth proportional to 117,961.20, 176,826.60 and 105,519.60 is: 158,176.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961.20 : 176,826.60 = 105,519.60 : x
  2. Step 2: Convert to fraction form
    117,961.20/176,826.60 = 105,519.60/x
  3. Step 3: Cross multiply
    117,961.20x = 176,826.60 × 105,519.60
  4. Step 4: Simplify right side
    117,961.20x = 18,658,672,101.36
  5. Step 5: Solve for x
    x = 18,658,672,101.36/117,961.20
  6. Step 6: Final answer
    x = 158,176.35

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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.