Home / 121,765.60-167,391.29-104,707.36

Finding the Fourth Proportional to 121,765.60, 167,391.29 and 104,707.36

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Solution

The fourth proportional to 121,765.60, 167,391.29 and 104,707.36 is: 143,941.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,765.60 : 167,391.29 = 104,707.36 : x
  2. Step 2: Convert to fraction form
    121,765.60/167,391.29 = 104,707.36/x
  3. Step 3: Cross multiply
    121,765.60x = 167,391.29 × 104,707.36
  4. Step 4: Simplify right side
    121,765.60x = 17,527,100,062.89
  5. Step 5: Solve for x
    x = 17,527,100,062.89/121,765.60
  6. Step 6: Final answer
    x = 143,941.31

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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.