Home / 151,163.54-208,691.73-100,245.01

Finding the Fourth Proportional to 151,163.54, 208,691.73 and 100,245.01

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Solution

The fourth proportional to 151,163.54, 208,691.73 and 100,245.01 is: 138,395.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,163.54 : 208,691.73 = 100,245.01 : x
  2. Step 2: Convert to fraction form
    151,163.54/208,691.73 = 100,245.01/x
  3. Step 3: Cross multiply
    151,163.54x = 208,691.73 × 100,245.01
  4. Step 4: Simplify right side
    151,163.54x = 20,920,304,560.77
  5. Step 5: Solve for x
    x = 20,920,304,560.77/151,163.54
  6. Step 6: Final answer
    x = 138,395.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.