Home / 209,964.96-315,040.32-110,101.68

Finding the Fourth Proportional to 209,964.96, 315,040.32 and 110,101.68

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Solution

The fourth proportional to 209,964.96, 315,040.32 and 110,101.68 is: 165,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,964.96 : 315,040.32 = 110,101.68 : x
  2. Step 2: Convert to fraction form
    209,964.96/315,040.32 = 110,101.68/x
  3. Step 3: Cross multiply
    209,964.96x = 315,040.32 × 110,101.68
  4. Step 4: Simplify right side
    209,964.96x = 34,686,468,499.74
  5. Step 5: Solve for x
    x = 34,686,468,499.74/209,964.96
  6. Step 6: Final answer
    x = 165,201.22

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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.