Home / 139,637.81-209,456.40-50,855.03

Finding the Fourth Proportional to 139,637.81, 209,456.40 and 50,855.03

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Solution

The fourth proportional to 139,637.81, 209,456.40 and 50,855.03 is: 76,282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,637.81 : 209,456.40 = 50,855.03 : x
  2. Step 2: Convert to fraction form
    139,637.81/209,456.40 = 50,855.03/x
  3. Step 3: Cross multiply
    139,637.81x = 209,456.40 × 50,855.03
  4. Step 4: Simplify right side
    139,637.81x = 10,651,910,458.41
  5. Step 5: Solve for x
    x = 10,651,910,458.41/139,637.81
  6. Step 6: Final answer
    x = 76,282.43

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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.