Home / 231,218.54-346,855.57-81,427.85

Finding the Fourth Proportional to 231,218.54, 346,855.57 and 81,427.85

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Solution

The fourth proportional to 231,218.54, 346,855.57 and 81,427.85 is: 122,151.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,218.54 : 346,855.57 = 81,427.85 : x
  2. Step 2: Convert to fraction form
    231,218.54/346,855.57 = 81,427.85/x
  3. Step 3: Cross multiply
    231,218.54x = 346,855.57 × 81,427.85
  4. Step 4: Simplify right side
    231,218.54x = 28,243,701,387.78
  5. Step 5: Solve for x
    x = 28,243,701,387.78/231,218.54
  6. Step 6: Final answer
    x = 122,151.55

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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.