Home / 200,086.20-299,874.15-81,623.70

Finding the Fourth Proportional to 200,086.20, 299,874.15 and 81,623.70

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Solution

The fourth proportional to 200,086.20, 299,874.15 and 81,623.70 is: 122,331.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,086.20 : 299,874.15 = 81,623.70 : x
  2. Step 2: Convert to fraction form
    200,086.20/299,874.15 = 81,623.70/x
  3. Step 3: Cross multiply
    200,086.20x = 299,874.15 × 81,623.70
  4. Step 4: Simplify right side
    200,086.20x = 24,476,837,657.36
  5. Step 5: Solve for x
    x = 24,476,837,657.36/200,086.20
  6. Step 6: Final answer
    x = 122,331.46

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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.