Home / 167,688.77-231,413.49-91,209.54

Finding the Fourth Proportional to 167,688.77, 231,413.49 and 91,209.54

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Solution

The fourth proportional to 167,688.77, 231,413.49 and 91,209.54 is: 125,870.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,688.77 : 231,413.49 = 91,209.54 : x
  2. Step 2: Convert to fraction form
    167,688.77/231,413.49 = 91,209.54/x
  3. Step 3: Cross multiply
    167,688.77x = 231,413.49 × 91,209.54
  4. Step 4: Simplify right side
    167,688.77x = 21,107,117,972.69
  5. Step 5: Solve for x
    x = 21,107,117,972.69/167,688.77
  6. Step 6: Final answer
    x = 125,870.79

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1.5x scale

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.