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Finding the Fourth Proportional to 168,138.70, 252,254.18 and 83,797.04

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Solution

The fourth proportional to 168,138.70, 252,254.18 and 83,797.04 is: 125,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,138.70 : 252,254.18 = 83,797.04 : x
  2. Step 2: Convert to fraction form
    168,138.70/252,254.18 = 83,797.04/x
  3. Step 3: Cross multiply
    168,138.70x = 252,254.18 × 83,797.04
  4. Step 4: Simplify right side
    168,138.70x = 21,138,153,611.63
  5. Step 5: Solve for x
    x = 21,138,153,611.63/168,138.70
  6. Step 6: Final answer
    x = 125,718.55

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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.