Home / 136,716.88-188,646.68-91,322.06

Finding the Fourth Proportional to 136,716.88, 188,646.68 and 91,322.06

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Solution

The fourth proportional to 136,716.88, 188,646.68 and 91,322.06 is: 126,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,716.88 : 188,646.68 = 91,322.06 : x
  2. Step 2: Convert to fraction form
    136,716.88/188,646.68 = 91,322.06/x
  3. Step 3: Cross multiply
    136,716.88x = 188,646.68 × 91,322.06
  4. Step 4: Simplify right side
    136,716.88x = 17,227,603,429.76
  5. Step 5: Solve for x
    x = 17,227,603,429.76/136,716.88
  6. Step 6: Final answer
    x = 126,009.34

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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.