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Finding the Fourth Proportional to 139,044.30, 208,566.45 and 133,601.10

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Solution

The fourth proportional to 139,044.30, 208,566.45 and 133,601.10 is: 200,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,044.30 : 208,566.45 = 133,601.10 : x
  2. Step 2: Convert to fraction form
    139,044.30/208,566.45 = 133,601.10/x
  3. Step 3: Cross multiply
    139,044.30x = 208,566.45 × 133,601.10
  4. Step 4: Simplify right side
    139,044.30x = 27,864,707,143.10
  5. Step 5: Solve for x
    x = 27,864,707,143.10/139,044.30
  6. Step 6: Final answer
    x = 200,401.65

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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.