Home / 139,942.01-209,933.78-45,141.03

Finding the Fourth Proportional to 139,942.01, 209,933.78 and 45,141.03

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Solution

The fourth proportional to 139,942.01, 209,933.78 and 45,141.03 is: 67,718.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,942.01 : 209,933.78 = 45,141.03 : x
  2. Step 2: Convert to fraction form
    139,942.01/209,933.78 = 45,141.03/x
  3. Step 3: Cross multiply
    139,942.01x = 209,933.78 × 45,141.03
  4. Step 4: Simplify right side
    139,942.01x = 9,476,626,835.29
  5. Step 5: Solve for x
    x = 9,476,626,835.29/139,942.01
  6. Step 6: Final answer
    x = 67,718.24

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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.