Home / 117,629.20-176,152.20-75,444.40

Finding the Fourth Proportional to 117,629.20, 176,152.20 and 75,444.40

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Solution

The fourth proportional to 117,629.20, 176,152.20 and 75,444.40 is: 112,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,629.20 : 176,152.20 = 75,444.40 : x
  2. Step 2: Convert to fraction form
    117,629.20/176,152.20 = 75,444.40/x
  3. Step 3: Cross multiply
    117,629.20x = 176,152.20 × 75,444.40
  4. Step 4: Simplify right side
    117,629.20x = 13,289,697,037.68
  5. Step 5: Solve for x
    x = 13,289,697,037.68/117,629.20
  6. Step 6: Final answer
    x = 112,979.58

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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.