Home / 117,091.85-175,638.22-28,345.21

Finding the Fourth Proportional to 117,091.85, 175,638.22 and 28,345.21

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Solution

The fourth proportional to 117,091.85, 175,638.22 and 28,345.21 is: 42,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,091.85 : 175,638.22 = 28,345.21 : x
  2. Step 2: Convert to fraction form
    117,091.85/175,638.22 = 28,345.21/x
  3. Step 3: Cross multiply
    117,091.85x = 175,638.22 × 28,345.21
  4. Step 4: Simplify right side
    117,091.85x = 4,978,501,719.97
  5. Step 5: Solve for x
    x = 4,978,501,719.97/117,091.85
  6. Step 6: Final answer
    x = 42,517.92

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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.