Home / 199,293.21-298,980.81-80,964.36

Finding the Fourth Proportional to 199,293.21, 298,980.81 and 80,964.36

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Solution

The fourth proportional to 199,293.21, 298,980.81 and 80,964.36 is: 121,463.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,293.21 : 298,980.81 = 80,964.36 : x
  2. Step 2: Convert to fraction form
    199,293.21/298,980.81 = 80,964.36/x
  3. Step 3: Cross multiply
    199,293.21x = 298,980.81 × 80,964.36
  4. Step 4: Simplify right side
    199,293.21x = 24,206,789,933.93
  5. Step 5: Solve for x
    x = 24,206,789,933.93/199,293.21
  6. Step 6: Final answer
    x = 121,463.19

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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.