Home / 198,590.52-297,792.19-72,141.60

Finding the Fourth Proportional to 198,590.52, 297,792.19 and 72,141.60

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Solution

The fourth proportional to 198,590.52, 297,792.19 and 72,141.60 is: 108,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,590.52 : 297,792.19 = 72,141.60 : x
  2. Step 2: Convert to fraction form
    198,590.52/297,792.19 = 72,141.60/x
  3. Step 3: Cross multiply
    198,590.52x = 297,792.19 × 72,141.60
  4. Step 4: Simplify right side
    198,590.52x = 21,483,206,261.00
  5. Step 5: Solve for x
    x = 21,483,206,261.00/198,590.52
  6. Step 6: Final answer
    x = 108,178.41

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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.