Home / 148,975.55-205,590.32-80,997.10

Finding the Fourth Proportional to 148,975.55, 205,590.32 and 80,997.10

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Solution

The fourth proportional to 148,975.55, 205,590.32 and 80,997.10 is: 111,778.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,975.55 : 205,590.32 = 80,997.10 : x
  2. Step 2: Convert to fraction form
    148,975.55/205,590.32 = 80,997.10/x
  3. Step 3: Cross multiply
    148,975.55x = 205,590.32 × 80,997.10
  4. Step 4: Simplify right side
    148,975.55x = 16,652,219,708.07
  5. Step 5: Solve for x
    x = 16,652,219,708.07/148,975.55
  6. Step 6: Final answer
    x = 111,778.21

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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.