Home / 151,231.70-208,687.38-87,573.62

Finding the Fourth Proportional to 151,231.70, 208,687.38 and 87,573.62

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Solution

The fourth proportional to 151,231.70, 208,687.38 and 87,573.62 is: 120,844.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,231.70 : 208,687.38 = 87,573.62 : x
  2. Step 2: Convert to fraction form
    151,231.70/208,687.38 = 87,573.62/x
  3. Step 3: Cross multiply
    151,231.70x = 208,687.38 × 87,573.62
  4. Step 4: Simplify right side
    151,231.70x = 18,275,509,314.92
  5. Step 5: Solve for x
    x = 18,275,509,314.92/151,231.70
  6. Step 6: Final answer
    x = 120,844.43

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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.