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Finding the Fourth Proportional to 168,719.78, 253,028.54 and 88,714.63

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Solution

The fourth proportional to 168,719.78, 253,028.54 and 88,714.63 is: 133,045.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,719.78 : 253,028.54 = 88,714.63 : x
  2. Step 2: Convert to fraction form
    168,719.78/253,028.54 = 88,714.63/x
  3. Step 3: Cross multiply
    168,719.78x = 253,028.54 × 88,714.63
  4. Step 4: Simplify right side
    168,719.78x = 22,447,333,305.54
  5. Step 5: Solve for x
    x = 22,447,333,305.54/168,719.78
  6. Step 6: Final answer
    x = 133,045.06

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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.