Home / 136,759.22-188,501.84-91,420.66

Finding the Fourth Proportional to 136,759.22, 188,501.84 and 91,420.66

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Solution

The fourth proportional to 136,759.22, 188,501.84 and 91,420.66 is: 126,009.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,759.22 : 188,501.84 = 91,420.66 : x
  2. Step 2: Convert to fraction form
    136,759.22/188,501.84 = 91,420.66/x
  3. Step 3: Cross multiply
    136,759.22x = 188,501.84 × 91,420.66
  4. Step 4: Simplify right side
    136,759.22x = 17,232,962,745.37
  5. Step 5: Solve for x
    x = 17,232,962,745.37/136,759.22
  6. Step 6: Final answer
    x = 126,009.51

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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.