Home / 143,399.38-197,888.52-79,736.62

Finding the Fourth Proportional to 143,399.38, 197,888.52 and 79,736.62

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Solution

The fourth proportional to 143,399.38, 197,888.52 and 79,736.62 is: 110,035.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,399.38 : 197,888.52 = 79,736.62 : x
  2. Step 2: Convert to fraction form
    143,399.38/197,888.52 = 79,736.62/x
  3. Step 3: Cross multiply
    143,399.38x = 197,888.52 × 79,736.62
  4. Step 4: Simplify right side
    143,399.38x = 15,778,961,721.60
  5. Step 5: Solve for x
    x = 15,778,961,721.60/143,399.38
  6. Step 6: Final answer
    x = 110,035.08

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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.