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Finding the Fourth Proportional to 121,179.82, 167,202.76 and 70,189.44

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Solution

The fourth proportional to 121,179.82, 167,202.76 and 70,189.44 is: 96,846.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,179.82 : 167,202.76 = 70,189.44 : x
  2. Step 2: Convert to fraction form
    121,179.82/167,202.76 = 70,189.44/x
  3. Step 3: Cross multiply
    121,179.82x = 167,202.76 × 70,189.44
  4. Step 4: Simplify right side
    121,179.82x = 11,735,868,090.85
  5. Step 5: Solve for x
    x = 11,735,868,090.85/121,179.82
  6. Step 6: Final answer
    x = 96,846.72

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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.