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Finding the Fourth Proportional to 139,473.24, 209,198.01 and 55,210.49

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Solution

The fourth proportional to 139,473.24, 209,198.01 and 55,210.49 is: 82,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,473.24 : 209,198.01 = 55,210.49 : x
  2. Step 2: Convert to fraction form
    139,473.24/209,198.01 = 55,210.49/x
  3. Step 3: Cross multiply
    139,473.24x = 209,198.01 × 55,210.49
  4. Step 4: Simplify right side
    139,473.24x = 11,549,925,450.85
  5. Step 5: Solve for x
    x = 11,549,925,450.85/139,473.24
  6. Step 6: Final answer
    x = 82,811.05

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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.