Home / 203,425.35-280,733.63-112,789.75

Finding the Fourth Proportional to 203,425.35, 280,733.63 and 112,789.75

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Solution

The fourth proportional to 203,425.35, 280,733.63 and 112,789.75 is: 155,653.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,425.35 : 280,733.63 = 112,789.75 : x
  2. Step 2: Convert to fraction form
    203,425.35/280,733.63 = 112,789.75/x
  3. Step 3: Cross multiply
    203,425.35x = 280,733.63 × 112,789.75
  4. Step 4: Simplify right side
    203,425.35x = 31,663,874,678.51
  5. Step 5: Solve for x
    x = 31,663,874,678.51/203,425.35
  6. Step 6: Final answer
    x = 155,653.53

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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.