Home / 143,229.72-197,748.12-97,983.12

Finding the Fourth Proportional to 143,229.72, 197,748.12 and 97,983.12

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Solution

The fourth proportional to 143,229.72, 197,748.12 and 97,983.12 is: 135,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,229.72 : 197,748.12 = 97,983.12 : x
  2. Step 2: Convert to fraction form
    143,229.72/197,748.12 = 97,983.12/x
  3. Step 3: Cross multiply
    143,229.72x = 197,748.12 × 97,983.12
  4. Step 4: Simplify right side
    143,229.72x = 19,375,977,771.73
  5. Step 5: Solve for x
    x = 19,375,977,771.73/143,229.72
  6. Step 6: Final answer
    x = 135,279.03

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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.