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Finding the Fourth Proportional to 121,467.78, 167,625.80 and 67,751.42

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Solution

The fourth proportional to 121,467.78, 167,625.80 and 67,751.42 is: 93,497.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,467.78 : 167,625.80 = 67,751.42 : x
  2. Step 2: Convert to fraction form
    121,467.78/167,625.80 = 67,751.42/x
  3. Step 3: Cross multiply
    121,467.78x = 167,625.80 × 67,751.42
  4. Step 4: Simplify right side
    121,467.78x = 11,356,885,978.64
  5. Step 5: Solve for x
    x = 11,356,885,978.64/121,467.78
  6. Step 6: Final answer
    x = 93,497.11

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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.