Home / 121,918.37-167,873.51-106,726.01

Finding the Fourth Proportional to 121,918.37, 167,873.51 and 106,726.01

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Solution

The fourth proportional to 121,918.37, 167,873.51 and 106,726.01 is: 146,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,918.37 : 167,873.51 = 106,726.01 : x
  2. Step 2: Convert to fraction form
    121,918.37/167,873.51 = 106,726.01/x
  3. Step 3: Cross multiply
    121,918.37x = 167,873.51 × 106,726.01
  4. Step 4: Simplify right side
    121,918.37x = 17,916,469,334.44
  5. Step 5: Solve for x
    x = 17,916,469,334.44/121,918.37
  6. Step 6: Final answer
    x = 146,954.64

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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.