Home / 143,743.01-198,348.14-82,486.05

Finding the Fourth Proportional to 143,743.01, 198,348.14 and 82,486.05

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Solution

The fourth proportional to 143,743.01, 198,348.14 and 82,486.05 is: 113,820.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,743.01 : 198,348.14 = 82,486.05 : x
  2. Step 2: Convert to fraction form
    143,743.01/198,348.14 = 82,486.05/x
  3. Step 3: Cross multiply
    143,743.01x = 198,348.14 × 82,486.05
  4. Step 4: Simplify right side
    143,743.01x = 16,360,954,055.86
  5. Step 5: Solve for x
    x = 16,360,954,055.86/143,743.01
  6. Step 6: Final answer
    x = 113,820.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.