Home / 136,738.88-188,716.96-79,365.92

Finding the Fourth Proportional to 136,738.88, 188,716.96 and 79,365.92

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Solution

The fourth proportional to 136,738.88, 188,716.96 and 79,365.92 is: 109,535.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,738.88 : 188,716.96 = 79,365.92 : x
  2. Step 2: Convert to fraction form
    136,738.88/188,716.96 = 79,365.92/x
  3. Step 3: Cross multiply
    136,738.88x = 188,716.96 × 79,365.92
  4. Step 4: Simplify right side
    136,738.88x = 14,977,695,150.00
  5. Step 5: Solve for x
    x = 14,977,695,150.00/136,738.88
  6. Step 6: Final answer
    x = 109,535.01

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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.