Home / 204,126.76-305,535-109,119.36

Finding the Fourth Proportional to 204,126.76, 305,535 and 109,119.36

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Solution

The fourth proportional to 204,126.76, 305,535 and 109,119.36 is: 163,328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,126.76 : 305,535 = 109,119.36 : x
  2. Step 2: Convert to fraction form
    204,126.76/305,535 = 109,119.36/x
  3. Step 3: Cross multiply
    204,126.76x = 305,535 × 109,119.36
  4. Step 4: Simplify right side
    204,126.76x = 33,339,783,657.60
  5. Step 5: Solve for x
    x = 33,339,783,657.60/204,126.76
  6. Step 6: Final answer
    x = 163,328.82

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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.