Home / 198,835.36-298,253.04-72,485.08

Finding the Fourth Proportional to 198,835.36, 298,253.04 and 72,485.08

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Solution

The fourth proportional to 198,835.36, 298,253.04 and 72,485.08 is: 108,727.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,835.36 : 298,253.04 = 72,485.08 : x
  2. Step 2: Convert to fraction form
    198,835.36/298,253.04 = 72,485.08/x
  3. Step 3: Cross multiply
    198,835.36x = 298,253.04 × 72,485.08
  4. Step 4: Simplify right side
    198,835.36x = 21,618,895,464.64
  5. Step 5: Solve for x
    x = 21,618,895,464.64/198,835.36
  6. Step 6: Final answer
    x = 108,727.62

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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.