Home / 148,844.78-205,404.98-80,861.21

Finding the Fourth Proportional to 148,844.78, 205,404.98 and 80,861.21

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Solution

The fourth proportional to 148,844.78, 205,404.98 and 80,861.21 is: 111,588.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,844.78 : 205,404.98 = 80,861.21 : x
  2. Step 2: Convert to fraction form
    148,844.78/205,404.98 = 80,861.21/x
  3. Step 3: Cross multiply
    148,844.78x = 205,404.98 × 80,861.21
  4. Step 4: Simplify right side
    148,844.78x = 16,609,293,791.49
  5. Step 5: Solve for x
    x = 16,609,293,791.49/148,844.78
  6. Step 6: Final answer
    x = 111,588.02

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1.5x scale

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.