Home / 138,012.04-206,940.30-48,013.48

Finding the Fourth Proportional to 138,012.04, 206,940.30 and 48,013.48

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Solution

The fourth proportional to 138,012.04, 206,940.30 and 48,013.48 is: 71,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,012.04 : 206,940.30 = 48,013.48 : x
  2. Step 2: Convert to fraction form
    138,012.04/206,940.30 = 48,013.48/x
  3. Step 3: Cross multiply
    138,012.04x = 206,940.30 × 48,013.48
  4. Step 4: Simplify right side
    138,012.04x = 9,935,923,955.24
  5. Step 5: Solve for x
    x = 9,935,923,955.24/138,012.04
  6. Step 6: Final answer
    x = 71,993.17

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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.