Home / 209,344.32-314,010.66-67,188.46

Finding the Fourth Proportional to 209,344.32, 314,010.66 and 67,188.46

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Solution

The fourth proportional to 209,344.32, 314,010.66 and 67,188.46 is: 100,780.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,344.32 : 314,010.66 = 67,188.46 : x
  2. Step 2: Convert to fraction form
    209,344.32/314,010.66 = 67,188.46/x
  3. Step 3: Cross multiply
    209,344.32x = 314,010.66 × 67,188.46
  4. Step 4: Simplify right side
    209,344.32x = 21,097,892,668.98
  5. Step 5: Solve for x
    x = 21,097,892,668.98/209,344.32
  6. Step 6: Final answer
    x = 100,780.82

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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.