Home / 124,929.20-187,393.80-82,938.80

Finding the Fourth Proportional to 124,929.20, 187,393.80 and 82,938.80

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Solution

The fourth proportional to 124,929.20, 187,393.80 and 82,938.80 is: 124,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,929.20 : 187,393.80 = 82,938.80 : x
  2. Step 2: Convert to fraction form
    124,929.20/187,393.80 = 82,938.80/x
  3. Step 3: Cross multiply
    124,929.20x = 187,393.80 × 82,938.80
  4. Step 4: Simplify right side
    124,929.20x = 15,542,216,899.44
  5. Step 5: Solve for x
    x = 15,542,216,899.44/124,929.20
  6. Step 6: Final answer
    x = 124,408.20

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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.