Home / 148,975.56-205,590.32-80,997.11

Finding the Fourth Proportional to 148,975.56, 205,590.32 and 80,997.11

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Solution

The fourth proportional to 148,975.56, 205,590.32 and 80,997.11 is: 111,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,975.56 : 205,590.32 = 80,997.11 : x
  2. Step 2: Convert to fraction form
    148,975.56/205,590.32 = 80,997.11/x
  3. Step 3: Cross multiply
    148,975.56x = 205,590.32 × 80,997.11
  4. Step 4: Simplify right side
    148,975.56x = 16,652,220,331.04
  5. Step 5: Solve for x
    x = 16,652,220,331.04/148,975.56
  6. Step 6: Final answer
    x = 111,778.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.