Home / 203,680.28-305,502.47-91,330.34

Finding the Fourth Proportional to 203,680.28, 305,502.47 and 91,330.34

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Solution

The fourth proportional to 203,680.28, 305,502.47 and 91,330.34 is: 136,987.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,680.28 : 305,502.47 = 91,330.34 : x
  2. Step 2: Convert to fraction form
    203,680.28/305,502.47 = 91,330.34/x
  3. Step 3: Cross multiply
    203,680.28x = 305,502.47 × 91,330.34
  4. Step 4: Simplify right side
    203,680.28x = 27,901,645,219.70
  5. Step 5: Solve for x
    x = 27,901,645,219.70/203,680.28
  6. Step 6: Final answer
    x = 136,987.46

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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.