Home / 209,928.18-314,953.56-67,770.12

Finding the Fourth Proportional to 209,928.18, 314,953.56 and 67,770.12

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Solution

The fourth proportional to 209,928.18, 314,953.56 and 67,770.12 is: 101,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,928.18 : 314,953.56 = 67,770.12 : x
  2. Step 2: Convert to fraction form
    209,928.18/314,953.56 = 67,770.12/x
  3. Step 3: Cross multiply
    209,928.18x = 314,953.56 × 67,770.12
  4. Step 4: Simplify right side
    209,928.18x = 21,344,440,555.63
  5. Step 5: Solve for x
    x = 21,344,440,555.63/209,928.18
  6. Step 6: Final answer
    x = 101,674.97

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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.