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Finding the Fourth Proportional to 121,599.26, 167,805.42 and 67,885.17

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Solution

The fourth proportional to 121,599.26, 167,805.42 and 67,885.17 is: 93,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,599.26 : 167,805.42 = 67,885.17 : x
  2. Step 2: Convert to fraction form
    121,599.26/167,805.42 = 67,885.17/x
  3. Step 3: Cross multiply
    121,599.26x = 167,805.42 × 67,885.17
  4. Step 4: Simplify right side
    121,599.26x = 11,391,499,463.62
  5. Step 5: Solve for x
    x = 11,391,499,463.62/121,599.26
  6. Step 6: Final answer
    x = 93,680.67

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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.