Home / 148,975.90-205,590.69-80,997.46

Finding the Fourth Proportional to 148,975.90, 205,590.69 and 80,997.46

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Solution

The fourth proportional to 148,975.90, 205,590.69 and 80,997.46 is: 111,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,975.90 : 205,590.69 = 80,997.46 : x
  2. Step 2: Convert to fraction form
    148,975.90/205,590.69 = 80,997.46/x
  3. Step 3: Cross multiply
    148,975.90x = 205,590.69 × 80,997.46
  4. Step 4: Simplify right side
    148,975.90x = 16,652,323,175.67
  5. Step 5: Solve for x
    x = 16,652,323,175.67/148,975.90
  6. Step 6: Final answer
    x = 111,778.64

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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.