Home / 203,119.20-280,304.64-111,238.02

Finding the Fourth Proportional to 203,119.20, 280,304.64 and 111,238.02

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Solution

The fourth proportional to 203,119.20, 280,304.64 and 111,238.02 is: 153,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,119.20 : 280,304.64 = 111,238.02 : x
  2. Step 2: Convert to fraction form
    203,119.20/280,304.64 = 111,238.02/x
  3. Step 3: Cross multiply
    203,119.20x = 280,304.64 × 111,238.02
  4. Step 4: Simplify right side
    203,119.20x = 31,180,533,150.41
  5. Step 5: Solve for x
    x = 31,180,533,150.41/203,119.20
  6. Step 6: Final answer
    x = 153,508.55

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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.