Home / 124,728.33-186,975.85-45,821.37

Finding the Fourth Proportional to 124,728.33, 186,975.85 and 45,821.37

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Solution

The fourth proportional to 124,728.33, 186,975.85 and 45,821.37 is: 68,689.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,728.33 : 186,975.85 = 45,821.37 : x
  2. Step 2: Convert to fraction form
    124,728.33/186,975.85 = 45,821.37/x
  3. Step 3: Cross multiply
    124,728.33x = 186,975.85 × 45,821.37
  4. Step 4: Simplify right side
    124,728.33x = 8,567,489,603.91
  5. Step 5: Solve for x
    x = 8,567,489,603.91/124,728.33
  6. Step 6: Final answer
    x = 68,689.20

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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.