Home / 103,330.20-155,016.90-33,216.60

Finding the Fourth Proportional to 103,330.20, 155,016.90 and 33,216.60

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Solution

The fourth proportional to 103,330.20, 155,016.90 and 33,216.60 is: 49,831.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,330.20 : 155,016.90 = 33,216.60 : x
  2. Step 2: Convert to fraction form
    103,330.20/155,016.90 = 33,216.60/x
  3. Step 3: Cross multiply
    103,330.20x = 155,016.90 × 33,216.60
  4. Step 4: Simplify right side
    103,330.20x = 5,149,134,360.54
  5. Step 5: Solve for x
    x = 5,149,134,360.54/103,330.20
  6. Step 6: Final answer
    x = 49,831.84

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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.