Home / 115,140.33-158,893.38-67,402.71

Finding the Fourth Proportional to 115,140.33, 158,893.38 and 67,402.71

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Solution

The fourth proportional to 115,140.33, 158,893.38 and 67,402.71 is: 93,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,140.33 : 158,893.38 = 67,402.71 : x
  2. Step 2: Convert to fraction form
    115,140.33/158,893.38 = 67,402.71/x
  3. Step 3: Cross multiply
    115,140.33x = 158,893.38 × 67,402.71
  4. Step 4: Simplify right side
    115,140.33x = 10,709,844,413.06
  5. Step 5: Solve for x
    x = 10,709,844,413.06/115,140.33
  6. Step 6: Final answer
    x = 93,015.58

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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.