Home / 143,091.68-197,456.58-79,424.46

Finding the Fourth Proportional to 143,091.68, 197,456.58 and 79,424.46

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Solution

The fourth proportional to 143,091.68, 197,456.58 and 79,424.46 is: 109,600.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,091.68 : 197,456.58 = 79,424.46 : x
  2. Step 2: Convert to fraction form
    143,091.68/197,456.58 = 79,424.46/x
  3. Step 3: Cross multiply
    143,091.68x = 197,456.58 × 79,424.46
  4. Step 4: Simplify right side
    143,091.68x = 15,682,882,239.95
  5. Step 5: Solve for x
    x = 15,682,882,239.95/143,091.68
  6. Step 6: Final answer
    x = 109,600.24

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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.