Home / 136,208.79-203,560.49-100,745.37

Finding the Fourth Proportional to 136,208.79, 203,560.49 and 100,745.37

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Solution

The fourth proportional to 136,208.79, 203,560.49 and 100,745.37 is: 150,561.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,208.79 : 203,560.49 = 100,745.37 : x
  2. Step 2: Convert to fraction form
    136,208.79/203,560.49 = 100,745.37/x
  3. Step 3: Cross multiply
    136,208.79x = 203,560.49 × 100,745.37
  4. Step 4: Simplify right side
    136,208.79x = 20,507,777,134.29
  5. Step 5: Solve for x
    x = 20,507,777,134.29/136,208.79
  6. Step 6: Final answer
    x = 150,561.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.