Home / 143,035.16-197,388.23-79,372.80

Finding the Fourth Proportional to 143,035.16, 197,388.23 and 79,372.80

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Solution

The fourth proportional to 143,035.16, 197,388.23 and 79,372.80 is: 109,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,035.16 : 197,388.23 = 79,372.80 : x
  2. Step 2: Convert to fraction form
    143,035.16/197,388.23 = 79,372.80/x
  3. Step 3: Cross multiply
    143,035.16x = 197,388.23 × 79,372.80
  4. Step 4: Simplify right side
    143,035.16x = 15,667,256,105.28
  5. Step 5: Solve for x
    x = 15,667,256,105.28/143,035.16
  6. Step 6: Final answer
    x = 109,534.30

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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.