Home / 123,178.20-184,475.70-83,520.60

Finding the Fourth Proportional to 123,178.20, 184,475.70 and 83,520.60

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Solution

The fourth proportional to 123,178.20, 184,475.70 and 83,520.60 is: 125,083.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,178.20 : 184,475.70 = 83,520.60 : x
  2. Step 2: Convert to fraction form
    123,178.20/184,475.70 = 83,520.60/x
  3. Step 3: Cross multiply
    123,178.20x = 184,475.70 × 83,520.60
  4. Step 4: Simplify right side
    123,178.20x = 15,407,521,149.42
  5. Step 5: Solve for x
    x = 15,407,521,149.42/123,178.20
  6. Step 6: Final answer
    x = 125,083.18

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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.