Home / 123,431.62-185,153.90-39,198.50

Finding the Fourth Proportional to 123,431.62, 185,153.90 and 39,198.50

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Solution

The fourth proportional to 123,431.62, 185,153.90 and 39,198.50 is: 58,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,431.62 : 185,153.90 = 39,198.50 : x
  2. Step 2: Convert to fraction form
    123,431.62/185,153.90 = 39,198.50/x
  3. Step 3: Cross multiply
    123,431.62x = 185,153.90 × 39,198.50
  4. Step 4: Simplify right side
    123,431.62x = 7,257,755,149.15
  5. Step 5: Solve for x
    x = 7,257,755,149.15/123,431.62
  6. Step 6: Final answer
    x = 58,799.80

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1.5x scale

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.