Home / 240,012.12-331,216.91-131,117.94

Finding the Fourth Proportional to 240,012.12, 331,216.91 and 131,117.94

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Solution

The fourth proportional to 240,012.12, 331,216.91 and 131,117.94 is: 180,942.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,012.12 : 331,216.91 = 131,117.94 : x
  2. Step 2: Convert to fraction form
    240,012.12/331,216.91 = 131,117.94/x
  3. Step 3: Cross multiply
    240,012.12x = 331,216.91 × 131,117.94
  4. Step 4: Simplify right side
    240,012.12x = 43,428,478,932.37
  5. Step 5: Solve for x
    x = 43,428,478,932.37/240,012.12
  6. Step 6: Final answer
    x = 180,942.86

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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.