Home / 199,335.40-298,996.62-80,971.72

Finding the Fourth Proportional to 199,335.40, 298,996.62 and 80,971.72

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Solution

The fourth proportional to 199,335.40, 298,996.62 and 80,971.72 is: 121,454.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,335.40 : 298,996.62 = 80,971.72 : x
  2. Step 2: Convert to fraction form
    199,335.40/298,996.62 = 80,971.72/x
  3. Step 3: Cross multiply
    199,335.40x = 298,996.62 × 80,971.72
  4. Step 4: Simplify right side
    199,335.40x = 24,210,270,595.59
  5. Step 5: Solve for x
    x = 24,210,270,595.59/199,335.40
  6. Step 6: Final answer
    x = 121,454.95

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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.