Home / 99,179.06-148,778.03-28,103.18

Finding the Fourth Proportional to 99,179.06, 148,778.03 and 28,103.18

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Solution

The fourth proportional to 99,179.06, 148,778.03 and 28,103.18 is: 42,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,179.06 : 148,778.03 = 28,103.18 : x
  2. Step 2: Convert to fraction form
    99,179.06/148,778.03 = 28,103.18/x
  3. Step 3: Cross multiply
    99,179.06x = 148,778.03 × 28,103.18
  4. Step 4: Simplify right side
    99,179.06x = 4,181,135,083.50
  5. Step 5: Solve for x
    x = 4,181,135,083.50/99,179.06
  6. Step 6: Final answer
    x = 42,157.44

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1.5x scale

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.