Home / 240,143.37-331,398.88-131,249.90

Finding the Fourth Proportional to 240,143.37, 331,398.88 and 131,249.90

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Solution

The fourth proportional to 240,143.37, 331,398.88 and 131,249.90 is: 181,125.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,143.37 : 331,398.88 = 131,249.90 : x
  2. Step 2: Convert to fraction form
    240,143.37/331,398.88 = 131,249.90/x
  3. Step 3: Cross multiply
    240,143.37x = 331,398.88 × 131,249.90
  4. Step 4: Simplify right side
    240,143.37x = 43,496,069,860.11
  5. Step 5: Solve for x
    x = 43,496,069,860.11/240,143.37
  6. Step 6: Final answer
    x = 181,125.42

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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.