Home / 117,720.38-176,481.03-51,110.12

Finding the Fourth Proportional to 117,720.38, 176,481.03 and 51,110.12

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Solution

The fourth proportional to 117,720.38, 176,481.03 and 51,110.12 is: 76,621.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,720.38 : 176,481.03 = 51,110.12 : x
  2. Step 2: Convert to fraction form
    117,720.38/176,481.03 = 51,110.12/x
  3. Step 3: Cross multiply
    117,720.38x = 176,481.03 × 51,110.12
  4. Step 4: Simplify right side
    117,720.38x = 9,019,966,621.02
  5. Step 5: Solve for x
    x = 9,019,966,621.02/117,720.38
  6. Step 6: Final answer
    x = 76,621.96

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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.