Home / 99,137.12-148,618.08-75,867.44

Finding the Fourth Proportional to 99,137.12, 148,618.08 and 75,867.44

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Solution

The fourth proportional to 99,137.12, 148,618.08 and 75,867.44 is: 113,734.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,137.12 : 148,618.08 = 75,867.44 : x
  2. Step 2: Convert to fraction form
    99,137.12/148,618.08 = 75,867.44/x
  3. Step 3: Cross multiply
    99,137.12x = 148,618.08 × 75,867.44
  4. Step 4: Simplify right side
    99,137.12x = 11,275,273,267.32
  5. Step 5: Solve for x
    x = 11,275,273,267.32/99,137.12
  6. Step 6: Final answer
    x = 113,734.12

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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.