Home / 199,818.50-299,532.94-79,839.68

Finding the Fourth Proportional to 199,818.50, 299,532.94 and 79,839.68

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Solution

The fourth proportional to 199,818.50, 299,532.94 and 79,839.68 is: 119,681.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,818.50 : 299,532.94 = 79,839.68 : x
  2. Step 2: Convert to fraction form
    199,818.50/299,532.94 = 79,839.68/x
  3. Step 3: Cross multiply
    199,818.50x = 299,532.94 × 79,839.68
  4. Step 4: Simplify right side
    199,818.50x = 23,914,612,381.80
  5. Step 5: Solve for x
    x = 23,914,612,381.80/199,818.50
  6. Step 6: Final answer
    x = 119,681.68

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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.