Home / 107,586.50-161,232.08-68,072.87

Finding the Fourth Proportional to 107,586.50, 161,232.08 and 68,072.87

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Solution

The fourth proportional to 107,586.50, 161,232.08 and 68,072.87 is: 102,015.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,586.50 : 161,232.08 = 68,072.87 : x
  2. Step 2: Convert to fraction form
    107,586.50/161,232.08 = 68,072.87/x
  3. Step 3: Cross multiply
    107,586.50x = 161,232.08 × 68,072.87
  4. Step 4: Simplify right side
    107,586.50x = 10,975,529,275.14
  5. Step 5: Solve for x
    x = 10,975,529,275.14/107,586.50
  6. Step 6: Final answer
    x = 102,015.86

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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.