Home / 168,763.20-253,144.80-109,665.60

Finding the Fourth Proportional to 168,763.20, 253,144.80 and 109,665.60

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Solution

The fourth proportional to 168,763.20, 253,144.80 and 109,665.60 is: 164,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,763.20 : 253,144.80 = 109,665.60 : x
  2. Step 2: Convert to fraction form
    168,763.20/253,144.80 = 109,665.60/x
  3. Step 3: Cross multiply
    168,763.20x = 253,144.80 × 109,665.60
  4. Step 4: Simplify right side
    168,763.20x = 27,761,276,378.88
  5. Step 5: Solve for x
    x = 27,761,276,378.88/168,763.20
  6. Step 6: Final answer
    x = 164,498.40

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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.