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Finding the Fourth Proportional to 124,650, 186,968.52 and 45,757.80

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Solution

The fourth proportional to 124,650, 186,968.52 and 45,757.80 is: 68,634.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,650 : 186,968.52 = 45,757.80 : x
  2. Step 2: Convert to fraction form
    124,650/186,968.52 = 45,757.80/x
  3. Step 3: Cross multiply
    124,650x = 186,968.52 × 45,757.80
  4. Step 4: Simplify right side
    124,650x = 8,555,268,144.46
  5. Step 5: Solve for x
    x = 8,555,268,144.46/124,650
  6. Step 6: Final answer
    x = 68,634.32

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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.