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Finding the Fourth Proportional to 162,383.48, 243,796.10 and 91,356.10

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Solution

The fourth proportional to 162,383.48, 243,796.10 and 91,356.10 is: 137,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,383.48 : 243,796.10 = 91,356.10 : x
  2. Step 2: Convert to fraction form
    162,383.48/243,796.10 = 91,356.10/x
  3. Step 3: Cross multiply
    162,383.48x = 243,796.10 × 91,356.10
  4. Step 4: Simplify right side
    162,383.48x = 22,272,260,891.21
  5. Step 5: Solve for x
    x = 22,272,260,891.21/162,383.48
  6. Step 6: Final answer
    x = 137,158.42

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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.