Home / 203,365.23-280,660.82-112,749.62

Finding the Fourth Proportional to 203,365.23, 280,660.82 and 112,749.62

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Solution

The fourth proportional to 203,365.23, 280,660.82 and 112,749.62 is: 155,603.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,365.23 : 280,660.82 = 112,749.62 : x
  2. Step 2: Convert to fraction form
    203,365.23/280,660.82 = 112,749.62/x
  3. Step 3: Cross multiply
    203,365.23x = 280,660.82 × 112,749.62
  4. Step 4: Simplify right side
    203,365.23x = 31,644,398,836.84
  5. Step 5: Solve for x
    x = 31,644,398,836.84/203,365.23
  6. Step 6: Final answer
    x = 155,603.78

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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.