Home / 121,785.60-167,418.40-104,727.04

Finding the Fourth Proportional to 121,785.60, 167,418.40 and 104,727.04

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Solution

The fourth proportional to 121,785.60, 167,418.40 and 104,727.04 is: 143,968.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,785.60 : 167,418.40 = 104,727.04 : x
  2. Step 2: Convert to fraction form
    121,785.60/167,418.40 = 104,727.04/x
  3. Step 3: Cross multiply
    121,785.60x = 167,418.40 × 104,727.04
  4. Step 4: Simplify right side
    121,785.60x = 17,533,233,473.54
  5. Step 5: Solve for x
    x = 17,533,233,473.54/121,785.60
  6. Step 6: Final answer
    x = 143,968.03

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.