Home / 143,046.18-197,399.97-79,382.34

Finding the Fourth Proportional to 143,046.18, 197,399.97 and 79,382.34

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Solution

The fourth proportional to 143,046.18, 197,399.97 and 79,382.34 is: 109,545.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,046.18 : 197,399.97 = 79,382.34 : x
  2. Step 2: Convert to fraction form
    143,046.18/197,399.97 = 79,382.34/x
  3. Step 3: Cross multiply
    143,046.18x = 197,399.97 × 79,382.34
  4. Step 4: Simplify right side
    143,046.18x = 15,670,071,534.53
  5. Step 5: Solve for x
    x = 15,670,071,534.53/143,046.18
  6. Step 6: Final answer
    x = 109,545.54

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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.