Home / 198,235.18-297,411.09-79,845.58

Finding the Fourth Proportional to 198,235.18, 297,411.09 and 79,845.58

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Solution

The fourth proportional to 198,235.18, 297,411.09 and 79,845.58 is: 119,791.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,235.18 : 297,411.09 = 79,845.58 : x
  2. Step 2: Convert to fraction form
    198,235.18/297,411.09 = 79,845.58/x
  3. Step 3: Cross multiply
    198,235.18x = 297,411.09 × 79,845.58
  4. Step 4: Simplify right side
    198,235.18x = 23,746,960,979.48
  5. Step 5: Solve for x
    x = 23,746,960,979.48/198,235.18
  6. Step 6: Final answer
    x = 119,791.86

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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.