Home / 124,760.48-187,120.56-45,855.20

Finding the Fourth Proportional to 124,760.48, 187,120.56 and 45,855.20

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Solution

The fourth proportional to 124,760.48, 187,120.56 and 45,855.20 is: 68,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,760.48 : 187,120.56 = 45,855.20 : x
  2. Step 2: Convert to fraction form
    124,760.48/187,120.56 = 45,855.20/x
  3. Step 3: Cross multiply
    124,760.48x = 187,120.56 × 45,855.20
  4. Step 4: Simplify right side
    124,760.48x = 8,580,450,702.91
  5. Step 5: Solve for x
    x = 8,580,450,702.91/124,760.48
  6. Step 6: Final answer
    x = 68,775.39

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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.