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Finding the Fourth Proportional to 143,368.97, 215,097.19 and 73,297.49

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Solution

The fourth proportional to 143,368.97, 215,097.19 and 73,297.49 is: 109,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,368.97 : 215,097.19 = 73,297.49 : x
  2. Step 2: Convert to fraction form
    143,368.97/215,097.19 = 73,297.49/x
  3. Step 3: Cross multiply
    143,368.97x = 215,097.19 × 73,297.49
  4. Step 4: Simplify right side
    143,368.97x = 15,766,082,874.32
  5. Step 5: Solve for x
    x = 15,766,082,874.32/143,368.97
  6. Step 6: Final answer
    x = 109,968.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.