Home / 139,645.44-209,417.13-50,872.68

Finding the Fourth Proportional to 139,645.44, 209,417.13 and 50,872.68

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Solution

The fourth proportional to 139,645.44, 209,417.13 and 50,872.68 is: 76,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,645.44 : 209,417.13 = 50,872.68 : x
  2. Step 2: Convert to fraction form
    139,645.44/209,417.13 = 50,872.68/x
  3. Step 3: Cross multiply
    139,645.44x = 209,417.13 × 50,872.68
  4. Step 4: Simplify right side
    139,645.44x = 10,653,610,641.01
  5. Step 5: Solve for x
    x = 10,653,610,641.01/139,645.44
  6. Step 6: Final answer
    x = 76,290.43

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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.