Home / 143,436.73-197,949.70-79,773.16

Finding the Fourth Proportional to 143,436.73, 197,949.70 and 79,773.16

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Solution

The fourth proportional to 143,436.73, 197,949.70 and 79,773.16 is: 110,090.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,436.73 : 197,949.70 = 79,773.16 : x
  2. Step 2: Convert to fraction form
    143,436.73/197,949.70 = 79,773.16/x
  3. Step 3: Cross multiply
    143,436.73x = 197,949.70 × 79,773.16
  4. Step 4: Simplify right side
    143,436.73x = 15,791,072,890.62
  5. Step 5: Solve for x
    x = 15,791,072,890.62/143,436.73
  6. Step 6: Final answer
    x = 110,090.86

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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.