Home / 209,822.20-314,826.35-109,958.68

Finding the Fourth Proportional to 209,822.20, 314,826.35 and 109,958.68

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Solution

The fourth proportional to 209,822.20, 314,826.35 and 109,958.68 is: 164,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,822.20 : 314,826.35 = 109,958.68 : x
  2. Step 2: Convert to fraction form
    209,822.20/314,826.35 = 109,958.68/x
  3. Step 3: Cross multiply
    209,822.20x = 314,826.35 × 109,958.68
  4. Step 4: Simplify right side
    209,822.20x = 34,617,889,718.96
  5. Step 5: Solve for x
    x = 34,617,889,718.96/209,822.20
  6. Step 6: Final answer
    x = 164,986.78

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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.