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Finding the Fourth Proportional to 159,990.39, 239,777.82 and 65,109.96

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Solution

The fourth proportional to 159,990.39, 239,777.82 and 65,109.96 is: 97,580.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,990.39 : 239,777.82 = 65,109.96 : x
  2. Step 2: Convert to fraction form
    159,990.39/239,777.82 = 65,109.96/x
  3. Step 3: Cross multiply
    159,990.39x = 239,777.82 × 65,109.96
  4. Step 4: Simplify right side
    159,990.39x = 15,611,924,269.09
  5. Step 5: Solve for x
    x = 15,611,924,269.09/159,990.39
  6. Step 6: Final answer
    x = 97,580.39

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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.