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Finding the Fourth Proportional to 133,348.86, 200,030.64 and 39,861.90

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Solution

The fourth proportional to 133,348.86, 200,030.64 and 39,861.90 is: 59,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,348.86 : 200,030.64 = 39,861.90 : x
  2. Step 2: Convert to fraction form
    133,348.86/200,030.64 = 39,861.90/x
  3. Step 3: Cross multiply
    133,348.86x = 200,030.64 × 39,861.90
  4. Step 4: Simplify right side
    133,348.86x = 7,973,601,368.62
  5. Step 5: Solve for x
    x = 7,973,601,368.62/133,348.86
  6. Step 6: Final answer
    x = 59,795.05

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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.