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Finding the Fourth Proportional to 139,377.22, 209,079.61 and 44,583.60

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Solution

The fourth proportional to 139,377.22, 209,079.61 and 44,583.60 is: 66,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,377.22 : 209,079.61 = 44,583.60 : x
  2. Step 2: Convert to fraction form
    139,377.22/209,079.61 = 44,583.60/x
  3. Step 3: Cross multiply
    139,377.22x = 209,079.61 × 44,583.60
  4. Step 4: Simplify right side
    139,377.22x = 9,321,521,700.40
  5. Step 5: Solve for x
    x = 9,321,521,700.40/139,377.22
  6. Step 6: Final answer
    x = 66,879.81

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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.