Home / 149,413.07-206,195.27-81,435.71

Finding the Fourth Proportional to 149,413.07, 206,195.27 and 81,435.71

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Solution

The fourth proportional to 149,413.07, 206,195.27 and 81,435.71 is: 112,384.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,413.07 : 206,195.27 = 81,435.71 : x
  2. Step 2: Convert to fraction form
    149,413.07/206,195.27 = 81,435.71/x
  3. Step 3: Cross multiply
    149,413.07x = 206,195.27 × 81,435.71
  4. Step 4: Simplify right side
    149,413.07x = 16,791,658,211.09
  5. Step 5: Solve for x
    x = 16,791,658,211.09/149,413.07
  6. Step 6: Final answer
    x = 112,384.13

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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.