Home / 121,131.08-167,146.96-70,144.84

Finding the Fourth Proportional to 121,131.08, 167,146.96 and 70,144.84

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Solution

The fourth proportional to 121,131.08, 167,146.96 and 70,144.84 is: 96,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,131.08 : 167,146.96 = 70,144.84 : x
  2. Step 2: Convert to fraction form
    121,131.08/167,146.96 = 70,144.84/x
  3. Step 3: Cross multiply
    121,131.08x = 167,146.96 × 70,144.84
  4. Step 4: Simplify right side
    121,131.08x = 11,724,496,765.69
  5. Step 5: Solve for x
    x = 11,724,496,765.69/121,131.08
  6. Step 6: Final answer
    x = 96,791.81

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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.