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Finding the Fourth Proportional to 135,476.20, 203,345.46 and 65,404.68

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Solution

The fourth proportional to 135,476.20, 203,345.46 and 65,404.68 is: 98,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,476.20 : 203,345.46 = 65,404.68 : x
  2. Step 2: Convert to fraction form
    135,476.20/203,345.46 = 65,404.68/x
  3. Step 3: Cross multiply
    135,476.20x = 203,345.46 × 65,404.68
  4. Step 4: Simplify right side
    135,476.20x = 13,299,744,740.75
  5. Step 5: Solve for x
    x = 13,299,744,740.75/135,476.20
  6. Step 6: Final answer
    x = 98,170.34

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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.