Home / 128,971.71-193,342.14-50,067.18

Finding the Fourth Proportional to 128,971.71, 193,342.14 and 50,067.18

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Solution

The fourth proportional to 128,971.71, 193,342.14 and 50,067.18 is: 75,055.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,971.71 : 193,342.14 = 50,067.18 : x
  2. Step 2: Convert to fraction form
    128,971.71/193,342.14 = 50,067.18/x
  3. Step 3: Cross multiply
    128,971.71x = 193,342.14 × 50,067.18
  4. Step 4: Simplify right side
    128,971.71x = 9,680,095,724.97
  5. Step 5: Solve for x
    x = 9,680,095,724.97/128,971.71
  6. Step 6: Final answer
    x = 75,055.96

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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.