Home / 117,005.10-175,507.65-92,121.90

Finding the Fourth Proportional to 117,005.10, 175,507.65 and 92,121.90

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Solution

The fourth proportional to 117,005.10, 175,507.65 and 92,121.90 is: 138,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,005.10 : 175,507.65 = 92,121.90 : x
  2. Step 2: Convert to fraction form
    117,005.10/175,507.65 = 92,121.90/x
  3. Step 3: Cross multiply
    117,005.10x = 175,507.65 × 92,121.90
  4. Step 4: Simplify right side
    117,005.10x = 16,168,098,182.54
  5. Step 5: Solve for x
    x = 16,168,098,182.54/117,005.10
  6. Step 6: Final answer
    x = 138,182.85

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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.