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Finding the Fourth Proportional to 133,484.64, 200,226.90 and 39,990.39

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Solution

The fourth proportional to 133,484.64, 200,226.90 and 39,990.39 is: 59,985.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,484.64 : 200,226.90 = 39,990.39 : x
  2. Step 2: Convert to fraction form
    133,484.64/200,226.90 = 39,990.39/x
  3. Step 3: Cross multiply
    133,484.64x = 200,226.90 × 39,990.39
  4. Step 4: Simplify right side
    133,484.64x = 8,007,151,819.49
  5. Step 5: Solve for x
    x = 8,007,151,819.49/133,484.64
  6. Step 6: Final answer
    x = 59,985.57

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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.