Home / 136,579.47-188,412.66-91,268.58

Finding the Fourth Proportional to 136,579.47, 188,412.66 and 91,268.58

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Solution

The fourth proportional to 136,579.47, 188,412.66 and 91,268.58 is: 125,905.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,579.47 : 188,412.66 = 91,268.58 : x
  2. Step 2: Convert to fraction form
    136,579.47/188,412.66 = 91,268.58/x
  3. Step 3: Cross multiply
    136,579.47x = 188,412.66 × 91,268.58
  4. Step 4: Simplify right side
    136,579.47x = 17,196,155,932.22
  5. Step 5: Solve for x
    x = 17,196,155,932.22/136,579.47
  6. Step 6: Final answer
    x = 125,905.86

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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.