Home / 165,382.51-248,198.61-121,124.01

Finding the Fourth Proportional to 165,382.51, 248,198.61 and 121,124.01

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Solution

The fourth proportional to 165,382.51, 248,198.61 and 121,124.01 is: 181,777.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,382.51 : 248,198.61 = 121,124.01 : x
  2. Step 2: Convert to fraction form
    165,382.51/248,198.61 = 121,124.01/x
  3. Step 3: Cross multiply
    165,382.51x = 248,198.61 × 121,124.01
  4. Step 4: Simplify right side
    165,382.51x = 30,062,809,886.48
  5. Step 5: Solve for x
    x = 30,062,809,886.48/165,382.51
  6. Step 6: Final answer
    x = 181,777.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.