Home / 107,831.90-161,747.82-28,946.12

Finding the Fourth Proportional to 107,831.90, 161,747.82 and 28,946.12

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Solution

The fourth proportional to 107,831.90, 161,747.82 and 28,946.12 is: 43,419.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,831.90 : 161,747.82 = 28,946.12 : x
  2. Step 2: Convert to fraction form
    107,831.90/161,747.82 = 28,946.12/x
  3. Step 3: Cross multiply
    107,831.90x = 161,747.82 × 28,946.12
  4. Step 4: Simplify right side
    107,831.90x = 4,681,970,998.72
  5. Step 5: Solve for x
    x = 4,681,970,998.72/107,831.90
  6. Step 6: Final answer
    x = 43,419.16

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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.