Home / 121,690.62-167,932.34-67,975.47

Finding the Fourth Proportional to 121,690.62, 167,932.34 and 67,975.47

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Solution

The fourth proportional to 121,690.62, 167,932.34 and 67,975.47 is: 93,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,690.62 : 167,932.34 = 67,975.47 : x
  2. Step 2: Convert to fraction form
    121,690.62/167,932.34 = 67,975.47/x
  3. Step 3: Cross multiply
    121,690.62x = 167,932.34 × 67,975.47
  4. Step 4: Simplify right side
    121,690.62x = 11,415,279,654.73
  5. Step 5: Solve for x
    x = 11,415,279,654.73/121,690.62
  6. Step 6: Final answer
    x = 93,805.75

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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.