Home / 109,869.60-164,831.40-30,982.80

Finding the Fourth Proportional to 109,869.60, 164,831.40 and 30,982.80

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Solution

The fourth proportional to 109,869.60, 164,831.40 and 30,982.80 is: 46,481.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.60 : 164,831.40 = 30,982.80 : x
  2. Step 2: Convert to fraction form
    109,869.60/164,831.40 = 30,982.80/x
  3. Step 3: Cross multiply
    109,869.60x = 164,831.40 × 30,982.80
  4. Step 4: Simplify right side
    109,869.60x = 5,106,938,299.92
  5. Step 5: Solve for x
    x = 5,106,938,299.92/109,869.60
  6. Step 6: Final answer
    x = 46,481.81

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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.