Home / 139,669.98-209,517.30-39,828.02

Finding the Fourth Proportional to 139,669.98, 209,517.30 and 39,828.02

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Solution

The fourth proportional to 139,669.98, 209,517.30 and 39,828.02 is: 59,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,669.98 : 209,517.30 = 39,828.02 : x
  2. Step 2: Convert to fraction form
    139,669.98/209,517.30 = 39,828.02/x
  3. Step 3: Cross multiply
    139,669.98x = 209,517.30 × 39,828.02
  4. Step 4: Simplify right side
    139,669.98x = 8,344,659,214.75
  5. Step 5: Solve for x
    x = 8,344,659,214.75/139,669.98
  6. Step 6: Final answer
    x = 59,745.55

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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.