Home / 143,060.36-197,414.10-79,398.20

Finding the Fourth Proportional to 143,060.36, 197,414.10 and 79,398.20

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Solution

The fourth proportional to 143,060.36, 197,414.10 and 79,398.20 is: 109,564.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,060.36 : 197,414.10 = 79,398.20 : x
  2. Step 2: Convert to fraction form
    143,060.36/197,414.10 = 79,398.20/x
  3. Step 3: Cross multiply
    143,060.36x = 197,414.10 × 79,398.20
  4. Step 4: Simplify right side
    143,060.36x = 15,674,324,194.62
  5. Step 5: Solve for x
    x = 15,674,324,194.62/143,060.36
  6. Step 6: Final answer
    x = 109,564.41

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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.