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Finding the Fourth Proportional to 135,398.08, 202,976.48 and 64,276.80

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Solution

The fourth proportional to 135,398.08, 202,976.48 and 64,276.80 is: 96,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,398.08 : 202,976.48 = 64,276.80 : x
  2. Step 2: Convert to fraction form
    135,398.08/202,976.48 = 64,276.80/x
  3. Step 3: Cross multiply
    135,398.08x = 202,976.48 × 64,276.80
  4. Step 4: Simplify right side
    135,398.08x = 13,046,678,609.66
  5. Step 5: Solve for x
    x = 13,046,678,609.66/135,398.08
  6. Step 6: Final answer
    x = 96,357.93

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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.