Home / 215,372.82-323,040.75-131,111.12

Finding the Fourth Proportional to 215,372.82, 323,040.75 and 131,111.12

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Solution

The fourth proportional to 215,372.82, 323,040.75 and 131,111.12 is: 196,655.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,372.82 : 323,040.75 = 131,111.12 : x
  2. Step 2: Convert to fraction form
    215,372.82/323,040.75 = 131,111.12/x
  3. Step 3: Cross multiply
    215,372.82x = 323,040.75 × 131,111.12
  4. Step 4: Simplify right side
    215,372.82x = 42,354,232,922.94
  5. Step 5: Solve for x
    x = 42,354,232,922.94/215,372.82
  6. Step 6: Final answer
    x = 196,655.42

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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.