Home / 138,097.03-207,172.28-53,853.79

Finding the Fourth Proportional to 138,097.03, 207,172.28 and 53,853.79

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Solution

The fourth proportional to 138,097.03, 207,172.28 and 53,853.79 is: 80,791.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,097.03 : 207,172.28 = 53,853.79 : x
  2. Step 2: Convert to fraction form
    138,097.03/207,172.28 = 53,853.79/x
  3. Step 3: Cross multiply
    138,097.03x = 207,172.28 × 53,853.79
  4. Step 4: Simplify right side
    138,097.03x = 11,157,012,460.94
  5. Step 5: Solve for x
    x = 11,157,012,460.94/138,097.03
  6. Step 6: Final answer
    x = 80,791.11

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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.