Home / 143,104.19-197,473.88-79,436.97

Finding the Fourth Proportional to 143,104.19, 197,473.88 and 79,436.97

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Solution

The fourth proportional to 143,104.19, 197,473.88 and 79,436.97 is: 109,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,104.19 : 197,473.88 = 79,436.97 : x
  2. Step 2: Convert to fraction form
    143,104.19/197,473.88 = 79,436.97/x
  3. Step 3: Cross multiply
    143,104.19x = 197,473.88 × 79,436.97
  4. Step 4: Simplify right side
    143,104.19x = 15,686,726,879.94
  5. Step 5: Solve for x
    x = 15,686,726,879.94/143,104.19
  6. Step 6: Final answer
    x = 109,617.53

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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.