Home / 199,165.28-298,813.68-72,844.16

Finding the Fourth Proportional to 199,165.28, 298,813.68 and 72,844.16

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Solution

The fourth proportional to 199,165.28, 298,813.68 and 72,844.16 is: 109,290.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,165.28 : 298,813.68 = 72,844.16 : x
  2. Step 2: Convert to fraction form
    199,165.28/298,813.68 = 72,844.16/x
  3. Step 3: Cross multiply
    199,165.28x = 298,813.68 × 72,844.16
  4. Step 4: Simplify right side
    199,165.28x = 21,766,831,516.11
  5. Step 5: Solve for x
    x = 21,766,831,516.11/199,165.28
  6. Step 6: Final answer
    x = 109,290.29

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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.