Home / 117,485.20-176,111.94-75,245.32

Finding the Fourth Proportional to 117,485.20, 176,111.94 and 75,245.32

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Solution

The fourth proportional to 117,485.20, 176,111.94 and 75,245.32 is: 112,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,485.20 : 176,111.94 = 75,245.32 : x
  2. Step 2: Convert to fraction form
    117,485.20/176,111.94 = 75,245.32/x
  3. Step 3: Cross multiply
    117,485.20x = 176,111.94 × 75,245.32
  4. Step 4: Simplify right side
    117,485.20x = 13,251,599,281.12
  5. Step 5: Solve for x
    x = 13,251,599,281.12/117,485.20
  6. Step 6: Final answer
    x = 112,793.78

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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.