Home / 143,631.14-198,224.82-79,968.94

Finding the Fourth Proportional to 143,631.14, 198,224.82 and 79,968.94

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Solution

The fourth proportional to 143,631.14, 198,224.82 and 79,968.94 is: 110,364.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,631.14 : 198,224.82 = 79,968.94 : x
  2. Step 2: Convert to fraction form
    143,631.14/198,224.82 = 79,968.94/x
  3. Step 3: Cross multiply
    143,631.14x = 198,224.82 × 79,968.94
  4. Step 4: Simplify right side
    143,631.14x = 15,851,828,241.53
  5. Step 5: Solve for x
    x = 15,851,828,241.53/143,631.14
  6. Step 6: Final answer
    x = 110,364.84

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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.