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Finding the Fourth Proportional to 162,406.98, 243,630.27 and 68,881.14

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Solution

The fourth proportional to 162,406.98, 243,630.27 and 68,881.14 is: 103,330.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,406.98 : 243,630.27 = 68,881.14 : x
  2. Step 2: Convert to fraction form
    162,406.98/243,630.27 = 68,881.14/x
  3. Step 3: Cross multiply
    162,406.98x = 243,630.27 × 68,881.14
  4. Step 4: Simplify right side
    162,406.98x = 16,781,530,736.11
  5. Step 5: Solve for x
    x = 16,781,530,736.11/162,406.98
  6. Step 6: Final answer
    x = 103,330.11

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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.