Home / 209,322.12-314,010.90-67,119.96

Finding the Fourth Proportional to 209,322.12, 314,010.90 and 67,119.96

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Solution

The fourth proportional to 209,322.12, 314,010.90 and 67,119.96 is: 100,688.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,322.12 : 314,010.90 = 67,119.96 : x
  2. Step 2: Convert to fraction form
    209,322.12/314,010.90 = 67,119.96/x
  3. Step 3: Cross multiply
    209,322.12x = 314,010.90 × 67,119.96
  4. Step 4: Simplify right side
    209,322.12x = 21,076,399,047.56
  5. Step 5: Solve for x
    x = 21,076,399,047.56/209,322.12
  6. Step 6: Final answer
    x = 100,688.83

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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.