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Finding the Fourth Proportional to 121,157.66, 167,213.24 and 69,494.92

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Solution

The fourth proportional to 121,157.66, 167,213.24 and 69,494.92 is: 95,911.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,157.66 : 167,213.24 = 69,494.92 : x
  2. Step 2: Convert to fraction form
    121,157.66/167,213.24 = 69,494.92/x
  3. Step 3: Cross multiply
    121,157.66x = 167,213.24 × 69,494.92
  4. Step 4: Simplify right side
    121,157.66x = 11,620,470,492.45
  5. Step 5: Solve for x
    x = 11,620,470,492.45/121,157.66
  6. Step 6: Final answer
    x = 95,911.97

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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.