Home / 143,015.44-197,358.78-79,352.14

Finding the Fourth Proportional to 143,015.44, 197,358.78 and 79,352.14

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Solution

The fourth proportional to 143,015.44, 197,358.78 and 79,352.14 is: 109,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,015.44 : 197,358.78 = 79,352.14 : x
  2. Step 2: Convert to fraction form
    143,015.44/197,358.78 = 79,352.14/x
  3. Step 3: Cross multiply
    143,015.44x = 197,358.78 × 79,352.14
  4. Step 4: Simplify right side
    143,015.44x = 15,660,841,540.79
  5. Step 5: Solve for x
    x = 15,660,841,540.79/143,015.44
  6. Step 6: Final answer
    x = 109,504.55

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1.5x scale

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.