Home / 187,418.90-280,817.31-131,898.26

Finding the Fourth Proportional to 187,418.90, 280,817.31 and 131,898.26

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Solution

The fourth proportional to 187,418.90, 280,817.31 and 131,898.26 is: 197,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,418.90 : 280,817.31 = 131,898.26 : x
  2. Step 2: Convert to fraction form
    187,418.90/280,817.31 = 131,898.26/x
  3. Step 3: Cross multiply
    187,418.90x = 280,817.31 × 131,898.26
  4. Step 4: Simplify right side
    187,418.90x = 37,039,314,566.88
  5. Step 5: Solve for x
    x = 37,039,314,566.88/187,418.90
  6. Step 6: Final answer
    x = 197,628.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.