Home / 203,845.13-281,439.51-132,428.69

Finding the Fourth Proportional to 203,845.13, 281,439.51 and 132,428.69

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Solution

The fourth proportional to 203,845.13, 281,439.51 and 132,428.69 is: 182,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,845.13 : 281,439.51 = 132,428.69 : x
  2. Step 2: Convert to fraction form
    203,845.13/281,439.51 = 132,428.69/x
  3. Step 3: Cross multiply
    203,845.13x = 281,439.51 × 132,428.69
  4. Step 4: Simplify right side
    203,845.13x = 37,270,665,623.54
  5. Step 5: Solve for x
    x = 37,270,665,623.54/203,845.13
  6. Step 6: Final answer
    x = 182,838.15

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1.5x scale

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.