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Finding the Fourth Proportional to 68,175.63, 102,256.29 and 18,260.88

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Solution

The fourth proportional to 68,175.63, 102,256.29 and 18,260.88 is: 27,389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,175.63 : 102,256.29 = 18,260.88 : x
  2. Step 2: Convert to fraction form
    68,175.63/102,256.29 = 18,260.88/x
  3. Step 3: Cross multiply
    68,175.63x = 102,256.29 × 18,260.88
  4. Step 4: Simplify right side
    68,175.63x = 1,867,289,840.94
  5. Step 5: Solve for x
    x = 1,867,289,840.94/68,175.63
  6. Step 6: Final answer
    x = 27,389.40

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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.