Home / 198,465.54-297,708.04-80,122.12

Finding the Fourth Proportional to 198,465.54, 297,708.04 and 80,122.12

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Solution

The fourth proportional to 198,465.54, 297,708.04 and 80,122.12 is: 120,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,465.54 : 297,708.04 = 80,122.12 : x
  2. Step 2: Convert to fraction form
    198,465.54/297,708.04 = 80,122.12/x
  3. Step 3: Cross multiply
    198,465.54x = 297,708.04 × 80,122.12
  4. Step 4: Simplify right side
    198,465.54x = 23,852,999,305.84
  5. Step 5: Solve for x
    x = 23,852,999,305.84/198,465.54
  6. Step 6: Final answer
    x = 120,187.11

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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.