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Finding the Fourth Proportional to 135,843.80, 203,765.70 and 36,019.40

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Solution

The fourth proportional to 135,843.80, 203,765.70 and 36,019.40 is: 54,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,843.80 : 203,765.70 = 36,019.40 : x
  2. Step 2: Convert to fraction form
    135,843.80/203,765.70 = 36,019.40/x
  3. Step 3: Cross multiply
    135,843.80x = 203,765.70 × 36,019.40
  4. Step 4: Simplify right side
    135,843.80x = 7,339,518,254.58
  5. Step 5: Solve for x
    x = 7,339,518,254.58/135,843.80
  6. Step 6: Final answer
    x = 54,029.10

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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.