Home / 121,147.45-181,727.28-46,274.09

Finding the Fourth Proportional to 121,147.45, 181,727.28 and 46,274.09

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Solution

The fourth proportional to 121,147.45, 181,727.28 and 46,274.09 is: 69,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,147.45 : 181,727.28 = 46,274.09 : x
  2. Step 2: Convert to fraction form
    121,147.45/181,727.28 = 46,274.09/x
  3. Step 3: Cross multiply
    121,147.45x = 181,727.28 × 46,274.09
  4. Step 4: Simplify right side
    121,147.45x = 8,409,263,601.54
  5. Step 5: Solve for x
    x = 8,409,263,601.54/121,147.45
  6. Step 6: Final answer
    x = 69,413.46

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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.