Home / 136,413.29-188,259.78-82,700.57

Finding the Fourth Proportional to 136,413.29, 188,259.78 and 82,700.57

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Solution

The fourth proportional to 136,413.29, 188,259.78 and 82,700.57 is: 114,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,413.29 : 188,259.78 = 82,700.57 : x
  2. Step 2: Convert to fraction form
    136,413.29/188,259.78 = 82,700.57/x
  3. Step 3: Cross multiply
    136,413.29x = 188,259.78 × 82,700.57
  4. Step 4: Simplify right side
    136,413.29x = 15,569,190,172.78
  5. Step 5: Solve for x
    x = 15,569,190,172.78/136,413.29
  6. Step 6: Final answer
    x = 114,132.51

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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.