Home / 121,157.20-167,196.72-67,446.91

Finding the Fourth Proportional to 121,157.20, 167,196.72 and 67,446.91

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Solution

The fourth proportional to 121,157.20, 167,196.72 and 67,446.91 is: 93,076.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,157.20 : 167,196.72 = 67,446.91 : x
  2. Step 2: Convert to fraction form
    121,157.20/167,196.72 = 67,446.91/x
  3. Step 3: Cross multiply
    121,157.20x = 167,196.72 × 67,446.91
  4. Step 4: Simplify right side
    121,157.20x = 11,276,902,126.14
  5. Step 5: Solve for x
    x = 11,276,902,126.14/121,157.20
  6. Step 6: Final answer
    x = 93,076.62

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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.