Home / 143,540.98-197,881.24-100,967.38

Finding the Fourth Proportional to 143,540.98, 197,881.24 and 100,967.38

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Solution

The fourth proportional to 143,540.98, 197,881.24 and 100,967.38 is: 139,190.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,540.98 : 197,881.24 = 100,967.38 : x
  2. Step 2: Convert to fraction form
    143,540.98/197,881.24 = 100,967.38/x
  3. Step 3: Cross multiply
    143,540.98x = 197,881.24 × 100,967.38
  4. Step 4: Simplify right side
    143,540.98x = 19,979,550,353.95
  5. Step 5: Solve for x
    x = 19,979,550,353.95/143,540.98
  6. Step 6: Final answer
    x = 139,190.57

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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.