Home / 209,928.68-314,954.37-67,770.62

Finding the Fourth Proportional to 209,928.68, 314,954.37 and 67,770.62

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Solution

The fourth proportional to 209,928.68, 314,954.37 and 67,770.62 is: 101,675.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,928.68 : 314,954.37 = 67,770.62 : x
  2. Step 2: Convert to fraction form
    209,928.68/314,954.37 = 67,770.62/x
  3. Step 3: Cross multiply
    209,928.68x = 314,954.37 × 67,770.62
  4. Step 4: Simplify right side
    209,928.68x = 21,344,652,926.61
  5. Step 5: Solve for x
    x = 21,344,652,926.61/209,928.68
  6. Step 6: Final answer
    x = 101,675.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.