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Finding the Fourth Proportional to 136,044.20, 204,066.30 and 128,827.10

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Solution

The fourth proportional to 136,044.20, 204,066.30 and 128,827.10 is: 193,240.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,044.20 : 204,066.30 = 128,827.10 : x
  2. Step 2: Convert to fraction form
    136,044.20/204,066.30 = 128,827.10/x
  3. Step 3: Cross multiply
    136,044.20x = 204,066.30 × 128,827.10
  4. Step 4: Simplify right side
    136,044.20x = 26,289,269,636.73
  5. Step 5: Solve for x
    x = 26,289,269,636.73/136,044.20
  6. Step 6: Final answer
    x = 193,240.65

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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.