Home / 121,151.25-181,739.31-46,334.33

Finding the Fourth Proportional to 121,151.25, 181,739.31 and 46,334.33

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Solution

The fourth proportional to 121,151.25, 181,739.31 and 46,334.33 is: 69,506.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,151.25 : 181,739.31 = 46,334.33 : x
  2. Step 2: Convert to fraction form
    121,151.25/181,739.31 = 46,334.33/x
  3. Step 3: Cross multiply
    121,151.25x = 181,739.31 × 46,334.33
  4. Step 4: Simplify right side
    121,151.25x = 8,420,769,163.51
  5. Step 5: Solve for x
    x = 8,420,769,163.51/121,151.25
  6. Step 6: Final answer
    x = 69,506.25

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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.