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Finding the Fourth Proportional to 139,605.74, 209,329.04 and 95,286.14

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Solution

The fourth proportional to 139,605.74, 209,329.04 and 95,286.14 is: 142,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,605.74 : 209,329.04 = 95,286.14 : x
  2. Step 2: Convert to fraction form
    139,605.74/209,329.04 = 95,286.14/x
  3. Step 3: Cross multiply
    139,605.74x = 209,329.04 × 95,286.14
  4. Step 4: Simplify right side
    139,605.74x = 19,946,156,211.51
  5. Step 5: Solve for x
    x = 19,946,156,211.51/139,605.74
  6. Step 6: Final answer
    x = 142,874.90

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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.