Home / 121,109.24-167,132.27-66,667.70

Finding the Fourth Proportional to 121,109.24, 167,132.27 and 66,667.70

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Solution

The fourth proportional to 121,109.24, 167,132.27 and 66,667.70 is: 92,002.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,109.24 : 167,132.27 = 66,667.70 : x
  2. Step 2: Convert to fraction form
    121,109.24/167,132.27 = 66,667.70/x
  3. Step 3: Cross multiply
    121,109.24x = 167,132.27 × 66,667.70
  4. Step 4: Simplify right side
    121,109.24x = 11,142,324,036.68
  5. Step 5: Solve for x
    x = 11,142,324,036.68/121,109.24
  6. Step 6: Final answer
    x = 92,002.26

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1.5x scale

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.