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Finding the Fourth Proportional to 136,175.40, 204,044.40 and 128,302.20

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Solution

The fourth proportional to 136,175.40, 204,044.40 and 128,302.20 is: 192,247.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,175.40 : 204,044.40 = 128,302.20 : x
  2. Step 2: Convert to fraction form
    136,175.40/204,044.40 = 128,302.20/x
  3. Step 3: Cross multiply
    136,175.40x = 204,044.40 × 128,302.20
  4. Step 4: Simplify right side
    136,175.40x = 26,179,345,417.68
  5. Step 5: Solve for x
    x = 26,179,345,417.68/136,175.40
  6. Step 6: Final answer
    x = 192,247.24

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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.