Home / 107,635.28-161,222.25-87,549.43

Finding the Fourth Proportional to 107,635.28, 161,222.25 and 87,549.43

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Solution

The fourth proportional to 107,635.28, 161,222.25 and 87,549.43 is: 131,136.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,635.28 : 161,222.25 = 87,549.43 : x
  2. Step 2: Convert to fraction form
    107,635.28/161,222.25 = 87,549.43/x
  3. Step 3: Cross multiply
    107,635.28x = 161,222.25 × 87,549.43
  4. Step 4: Simplify right side
    107,635.28x = 14,114,916,016.07
  5. Step 5: Solve for x
    x = 14,114,916,016.07/107,635.28
  6. Step 6: Final answer
    x = 131,136.53

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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.