Home / 107,872.29-161,831.79-41,312.43

Finding the Fourth Proportional to 107,872.29, 161,831.79 and 41,312.43

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Solution

The fourth proportional to 107,872.29, 161,831.79 and 41,312.43 is: 61,977.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,872.29 : 161,831.79 = 41,312.43 : x
  2. Step 2: Convert to fraction form
    107,872.29/161,831.79 = 41,312.43/x
  3. Step 3: Cross multiply
    107,872.29x = 161,831.79 × 41,312.43
  4. Step 4: Simplify right side
    107,872.29x = 6,685,664,496.15
  5. Step 5: Solve for x
    x = 6,685,664,496.15/107,872.29
  6. Step 6: Final answer
    x = 61,977.59

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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.