Home / 143,441.48-197,956.26-79,777.92

Finding the Fourth Proportional to 143,441.48, 197,956.26 and 79,777.92

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Solution

The fourth proportional to 143,441.48, 197,956.26 and 79,777.92 is: 110,097.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,441.48 : 197,956.26 = 79,777.92 : x
  2. Step 2: Convert to fraction form
    143,441.48/197,956.26 = 79,777.92/x
  3. Step 3: Cross multiply
    143,441.48x = 197,956.26 × 79,777.92
  4. Step 4: Simplify right side
    143,441.48x = 15,792,538,673.78
  5. Step 5: Solve for x
    x = 15,792,538,673.78/143,441.48
  6. Step 6: Final answer
    x = 110,097.43

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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.