Home / 124,418.20-186,422.10-71,735.80

Finding the Fourth Proportional to 124,418.20, 186,422.10 and 71,735.80

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Solution

The fourth proportional to 124,418.20, 186,422.10 and 71,735.80 is: 107,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,418.20 : 186,422.10 = 71,735.80 : x
  2. Step 2: Convert to fraction form
    124,418.20/186,422.10 = 71,735.80/x
  3. Step 3: Cross multiply
    124,418.20x = 186,422.10 × 71,735.80
  4. Step 4: Simplify right side
    124,418.20x = 13,373,138,481.18
  5. Step 5: Solve for x
    x = 13,373,138,481.18/124,418.20
  6. Step 6: Final answer
    x = 107,485.39

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1.5x scale

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.