Home / 143,769.61-198,403.41-79,241.14

Finding the Fourth Proportional to 143,769.61, 198,403.41 and 79,241.14

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Solution

The fourth proportional to 143,769.61, 198,403.41 and 79,241.14 is: 109,353.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,769.61 : 198,403.41 = 79,241.14 : x
  2. Step 2: Convert to fraction form
    143,769.61/198,403.41 = 79,241.14/x
  3. Step 3: Cross multiply
    143,769.61x = 198,403.41 × 79,241.14
  4. Step 4: Simplify right side
    143,769.61x = 15,721,712,388.29
  5. Step 5: Solve for x
    x = 15,721,712,388.29/143,769.61
  6. Step 6: Final answer
    x = 109,353.52

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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.