Home / 143,202.75-197,619.81-79,546.47

Finding the Fourth Proportional to 143,202.75, 197,619.81 and 79,546.47

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Solution

The fourth proportional to 143,202.75, 197,619.81 and 79,546.47 is: 109,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,202.75 : 197,619.81 = 79,546.47 : x
  2. Step 2: Convert to fraction form
    143,202.75/197,619.81 = 79,546.47/x
  3. Step 3: Cross multiply
    143,202.75x = 197,619.81 × 79,546.47
  4. Step 4: Simplify right side
    143,202.75x = 15,719,958,287.57
  5. Step 5: Solve for x
    x = 15,719,958,287.57/143,202.75
  6. Step 6: Final answer
    x = 109,774.14

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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.