Home / 124,821.20-187,231.80-54,837.20

Finding the Fourth Proportional to 124,821.20, 187,231.80 and 54,837.20

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Solution

The fourth proportional to 124,821.20, 187,231.80 and 54,837.20 is: 82,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,821.20 : 187,231.80 = 54,837.20 : x
  2. Step 2: Convert to fraction form
    124,821.20/187,231.80 = 54,837.20/x
  3. Step 3: Cross multiply
    124,821.20x = 187,231.80 × 54,837.20
  4. Step 4: Simplify right side
    124,821.20x = 10,267,267,662.96
  5. Step 5: Solve for x
    x = 10,267,267,662.96/124,821.20
  6. Step 6: Final answer
    x = 82,255.80

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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.