Home / 119,831.47-165,372.43-66,119.97

Finding the Fourth Proportional to 119,831.47, 165,372.43 and 66,119.97

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Solution

The fourth proportional to 119,831.47, 165,372.43 and 66,119.97 is: 91,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,831.47 : 165,372.43 = 66,119.97 : x
  2. Step 2: Convert to fraction form
    119,831.47/165,372.43 = 66,119.97/x
  3. Step 3: Cross multiply
    119,831.47x = 165,372.43 × 66,119.97
  4. Step 4: Simplify right side
    119,831.47x = 10,934,420,110.43
  5. Step 5: Solve for x
    x = 10,934,420,110.43/119,831.47
  6. Step 6: Final answer
    x = 91,248.32

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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.