Home / 151,257.75-208,735.70-84,188.31

Finding the Fourth Proportional to 151,257.75, 208,735.70 and 84,188.31

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Solution

The fourth proportional to 151,257.75, 208,735.70 and 84,188.31 is: 116,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,257.75 : 208,735.70 = 84,188.31 : x
  2. Step 2: Convert to fraction form
    151,257.75/208,735.70 = 84,188.31/x
  3. Step 3: Cross multiply
    151,257.75x = 208,735.70 × 84,188.31
  4. Step 4: Simplify right side
    151,257.75x = 17,573,105,398.73
  5. Step 5: Solve for x
    x = 17,573,105,398.73/151,257.75
  6. Step 6: Final answer
    x = 116,179.87

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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.