Home / 117,933.20-176,608.20-78,275.60

Finding the Fourth Proportional to 117,933.20, 176,608.20 and 78,275.60

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Solution

The fourth proportional to 117,933.20, 176,608.20 and 78,275.60 is: 117,219.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,933.20 : 176,608.20 = 78,275.60 : x
  2. Step 2: Convert to fraction form
    117,933.20/176,608.20 = 78,275.60/x
  3. Step 3: Cross multiply
    117,933.20x = 176,608.20 × 78,275.60
  4. Step 4: Simplify right side
    117,933.20x = 13,824,112,819.92
  5. Step 5: Solve for x
    x = 13,824,112,819.92/117,933.20
  6. Step 6: Final answer
    x = 117,219.86

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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.