Home / 143,023.11-197,371.26-79,360.77

Finding the Fourth Proportional to 143,023.11, 197,371.26 and 79,360.77

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Solution

The fourth proportional to 143,023.11, 197,371.26 and 79,360.77 is: 109,517.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,023.11 : 197,371.26 = 79,360.77 : x
  2. Step 2: Convert to fraction form
    143,023.11/197,371.26 = 79,360.77/x
  3. Step 3: Cross multiply
    143,023.11x = 197,371.26 × 79,360.77
  4. Step 4: Simplify right side
    143,023.11x = 15,663,535,169.47
  5. Step 5: Solve for x
    x = 15,663,535,169.47/143,023.11
  6. Step 6: Final answer
    x = 109,517.51

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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.