Home / 143,631.88-198,204.41-82,374.91

Finding the Fourth Proportional to 143,631.88, 198,204.41 and 82,374.91

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Solution

The fourth proportional to 143,631.88, 198,204.41 and 82,374.91 is: 113,673.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,631.88 : 198,204.41 = 82,374.91 : x
  2. Step 2: Convert to fraction form
    143,631.88/198,204.41 = 82,374.91/x
  3. Step 3: Cross multiply
    143,631.88x = 198,204.41 × 82,374.91
  4. Step 4: Simplify right side
    143,631.88x = 16,327,070,402.76
  5. Step 5: Solve for x
    x = 16,327,070,402.76/143,631.88
  6. Step 6: Final answer
    x = 113,673.02

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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.