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Finding the Fourth Proportional to 135,659.76, 203,292.36 and 65,456.88

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Solution

The fourth proportional to 135,659.76, 203,292.36 and 65,456.88 is: 98,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,659.76 : 203,292.36 = 65,456.88 : x
  2. Step 2: Convert to fraction form
    135,659.76/203,292.36 = 65,456.88/x
  3. Step 3: Cross multiply
    135,659.76x = 203,292.36 × 65,456.88
  4. Step 4: Simplify right side
    135,659.76x = 13,306,883,613.44
  5. Step 5: Solve for x
    x = 13,306,883,613.44/135,659.76
  6. Step 6: Final answer
    x = 98,090.13

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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.