Home / 199,281.47-298,993.49-85,381.43

Finding the Fourth Proportional to 199,281.47, 298,993.49 and 85,381.43

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Solution

The fourth proportional to 199,281.47, 298,993.49 and 85,381.43 is: 128,102.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,281.47 : 298,993.49 = 85,381.43 : x
  2. Step 2: Convert to fraction form
    199,281.47/298,993.49 = 85,381.43/x
  3. Step 3: Cross multiply
    199,281.47x = 298,993.49 × 85,381.43
  4. Step 4: Simplify right side
    199,281.47x = 25,528,491,309.98
  5. Step 5: Solve for x
    x = 25,528,491,309.98/199,281.47
  6. Step 6: Final answer
    x = 128,102.68

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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.