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Finding the Fourth Proportional to 163,863.71, 226,165.42 and 103,393.61

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Solution

The fourth proportional to 163,863.71, 226,165.42 and 103,393.61 is: 142,704.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,863.71 : 226,165.42 = 103,393.61 : x
  2. Step 2: Convert to fraction form
    163,863.71/226,165.42 = 103,393.61/x
  3. Step 3: Cross multiply
    163,863.71x = 226,165.42 × 103,393.61
  4. Step 4: Simplify right side
    163,863.71x = 23,384,059,768.09
  5. Step 5: Solve for x
    x = 23,384,059,768.09/163,863.71
  6. Step 6: Final answer
    x = 142,704.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.