Home / 139,639.06-209,331.51-50,872.33

Finding the Fourth Proportional to 139,639.06, 209,331.51 and 50,872.33

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Solution

The fourth proportional to 139,639.06, 209,331.51 and 50,872.33 is: 76,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,639.06 : 209,331.51 = 50,872.33 : x
  2. Step 2: Convert to fraction form
    139,639.06/209,331.51 = 50,872.33/x
  3. Step 3: Cross multiply
    139,639.06x = 209,331.51 × 50,872.33
  4. Step 4: Simplify right side
    139,639.06x = 10,649,181,656.12
  5. Step 5: Solve for x
    x = 10,649,181,656.12/139,639.06
  6. Step 6: Final answer
    x = 76,262.20

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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.