Home / 198,416.38-297,622.93-80,085.91

Finding the Fourth Proportional to 198,416.38, 297,622.93 and 80,085.91

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Solution

The fourth proportional to 198,416.38, 297,622.93 and 80,085.91 is: 120,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,416.38 : 297,622.93 = 80,085.91 : x
  2. Step 2: Convert to fraction form
    198,416.38/297,622.93 = 80,085.91/x
  3. Step 3: Cross multiply
    198,416.38x = 297,622.93 × 80,085.91
  4. Step 4: Simplify right side
    198,416.38x = 23,835,403,185.92
  5. Step 5: Solve for x
    x = 23,835,403,185.92/198,416.38
  6. Step 6: Final answer
    x = 120,128.20

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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.