Home / 117,940.20-176,795.10-105,498.60

Finding the Fourth Proportional to 117,940.20, 176,795.10 and 105,498.60

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Solution

The fourth proportional to 117,940.20, 176,795.10 and 105,498.60 is: 158,144.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,940.20 : 176,795.10 = 105,498.60 : x
  2. Step 2: Convert to fraction form
    117,940.20/176,795.10 = 105,498.60/x
  3. Step 3: Cross multiply
    117,940.20x = 176,795.10 × 105,498.60
  4. Step 4: Simplify right side
    117,940.20x = 18,651,635,536.86
  5. Step 5: Solve for x
    x = 18,651,635,536.86/117,940.20
  6. Step 6: Final answer
    x = 158,144.85

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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.