Home / 149,831.26-206,773.42-86,169.11

Finding the Fourth Proportional to 149,831.26, 206,773.42 and 86,169.11

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Solution

The fourth proportional to 149,831.26, 206,773.42 and 86,169.11 is: 118,916.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,831.26 : 206,773.42 = 86,169.11 : x
  2. Step 2: Convert to fraction form
    149,831.26/206,773.42 = 86,169.11/x
  3. Step 3: Cross multiply
    149,831.26x = 206,773.42 × 86,169.11
  4. Step 4: Simplify right side
    149,831.26x = 17,817,480,539.19
  5. Step 5: Solve for x
    x = 17,817,480,539.19/149,831.26
  6. Step 6: Final answer
    x = 118,916.98

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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.