Home / 143,936.34-198,631.56-79,409.58

Finding the Fourth Proportional to 143,936.34, 198,631.56 and 79,409.58

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Solution

The fourth proportional to 143,936.34, 198,631.56 and 79,409.58 is: 109,584.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,936.34 : 198,631.56 = 79,409.58 : x
  2. Step 2: Convert to fraction form
    143,936.34/198,631.56 = 79,409.58/x
  3. Step 3: Cross multiply
    143,936.34x = 198,631.56 × 79,409.58
  4. Step 4: Simplify right side
    143,936.34x = 15,773,248,754.34
  5. Step 5: Solve for x
    x = 15,773,248,754.34/143,936.34
  6. Step 6: Final answer
    x = 109,584.90

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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.