Home / 167,217.40-250,908.09-78,478.12

Finding the Fourth Proportional to 167,217.40, 250,908.09 and 78,478.12

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Solution

The fourth proportional to 167,217.40, 250,908.09 and 78,478.12 is: 117,755.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,217.40 : 250,908.09 = 78,478.12 : x
  2. Step 2: Convert to fraction form
    167,217.40/250,908.09 = 78,478.12/x
  3. Step 3: Cross multiply
    167,217.40x = 250,908.09 × 78,478.12
  4. Step 4: Simplify right side
    167,217.40x = 19,690,795,195.99
  5. Step 5: Solve for x
    x = 19,690,795,195.99/167,217.40
  6. Step 6: Final answer
    x = 117,755.66

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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.