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Finding the Fourth Proportional to 161,714.82, 242,619 and 66,927.48

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Solution

The fourth proportional to 161,714.82, 242,619 and 66,927.48 is: 100,410.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,714.82 : 242,619 = 66,927.48 : x
  2. Step 2: Convert to fraction form
    161,714.82/242,619 = 66,927.48/x
  3. Step 3: Cross multiply
    161,714.82x = 242,619 × 66,927.48
  4. Step 4: Simplify right side
    161,714.82x = 16,237,878,270.12
  5. Step 5: Solve for x
    x = 16,237,878,270.12/161,714.82
  6. Step 6: Final answer
    x = 100,410.58

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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.