Home / 143,033.04-197,387.76-79,374.96

Finding the Fourth Proportional to 143,033.04, 197,387.76 and 79,374.96

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Solution

The fourth proportional to 143,033.04, 197,387.76 and 79,374.96 is: 109,538.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,033.04 : 197,387.76 = 79,374.96 : x
  2. Step 2: Convert to fraction form
    143,033.04/197,387.76 = 79,374.96/x
  3. Step 3: Cross multiply
    143,033.04x = 197,387.76 × 79,374.96
  4. Step 4: Simplify right side
    143,033.04x = 15,667,645,554.49
  5. Step 5: Solve for x
    x = 15,667,645,554.49/143,033.04
  6. Step 6: Final answer
    x = 109,538.65

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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.