Home / 143,440.72-197,933.04-79,768.24

Finding the Fourth Proportional to 143,440.72, 197,933.04 and 79,768.24

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Solution

The fourth proportional to 143,440.72, 197,933.04 and 79,768.24 is: 110,071.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,440.72 : 197,933.04 = 79,768.24 : x
  2. Step 2: Convert to fraction form
    143,440.72/197,933.04 = 79,768.24/x
  3. Step 3: Cross multiply
    143,440.72x = 197,933.04 × 79,768.24
  4. Step 4: Simplify right side
    143,440.72x = 15,788,770,238.65
  5. Step 5: Solve for x
    x = 15,788,770,238.65/143,440.72
  6. Step 6: Final answer
    x = 110,071.74

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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.