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Finding the Fourth Proportional to 139,079.87, 208,608.28 and 44,306.23

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Solution

The fourth proportional to 139,079.87, 208,608.28 and 44,306.23 is: 66,455.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,079.87 : 208,608.28 = 44,306.23 : x
  2. Step 2: Convert to fraction form
    139,079.87/208,608.28 = 44,306.23/x
  3. Step 3: Cross multiply
    139,079.87x = 208,608.28 × 44,306.23
  4. Step 4: Simplify right side
    139,079.87x = 9,242,645,852.35
  5. Step 5: Solve for x
    x = 9,242,645,852.35/139,079.87
  6. Step 6: Final answer
    x = 66,455.67

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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.