Home / 199,213.38-298,820.07-72,870.39

Finding the Fourth Proportional to 199,213.38, 298,820.07 and 72,870.39

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Solution

The fourth proportional to 199,213.38, 298,820.07 and 72,870.39 is: 109,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,213.38 : 298,820.07 = 72,870.39 : x
  2. Step 2: Convert to fraction form
    199,213.38/298,820.07 = 72,870.39/x
  3. Step 3: Cross multiply
    199,213.38x = 298,820.07 × 72,870.39
  4. Step 4: Simplify right side
    199,213.38x = 21,775,135,040.73
  5. Step 5: Solve for x
    x = 21,775,135,040.73/199,213.38
  6. Step 6: Final answer
    x = 109,305.59

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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.