Home / 199,700.22-299,467.05-81,291.18

Finding the Fourth Proportional to 199,700.22, 299,467.05 and 81,291.18

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Solution

The fourth proportional to 199,700.22, 299,467.05 and 81,291.18 is: 121,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,700.22 : 299,467.05 = 81,291.18 : x
  2. Step 2: Convert to fraction form
    199,700.22/299,467.05 = 81,291.18/x
  3. Step 3: Cross multiply
    199,700.22x = 299,467.05 × 81,291.18
  4. Step 4: Simplify right side
    199,700.22x = 24,344,029,865.62
  5. Step 5: Solve for x
    x = 24,344,029,865.62/199,700.22
  6. Step 6: Final answer
    x = 121,902.87

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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.