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Finding the Fourth Proportional to 157,451.73, 236,259.60 and 68,714.20

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Solution

The fourth proportional to 157,451.73, 236,259.60 and 68,714.20 is: 103,107.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,451.73 : 236,259.60 = 68,714.20 : x
  2. Step 2: Convert to fraction form
    157,451.73/236,259.60 = 68,714.20/x
  3. Step 3: Cross multiply
    157,451.73x = 236,259.60 × 68,714.20
  4. Step 4: Simplify right side
    157,451.73x = 16,234,389,406.32
  5. Step 5: Solve for x
    x = 16,234,389,406.32/157,451.73
  6. Step 6: Final answer
    x = 103,107.09

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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.