Home / 98,898.17-148,371.56-28,778.09

Finding the Fourth Proportional to 98,898.17, 148,371.56 and 28,778.09

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Solution

The fourth proportional to 98,898.17, 148,371.56 and 28,778.09 is: 43,174.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,898.17 : 148,371.56 = 28,778.09 : x
  2. Step 2: Convert to fraction form
    98,898.17/148,371.56 = 28,778.09/x
  3. Step 3: Cross multiply
    98,898.17x = 148,371.56 × 28,778.09
  4. Step 4: Simplify right side
    98,898.17x = 4,269,850,107.12
  5. Step 5: Solve for x
    x = 4,269,850,107.12/98,898.17
  6. Step 6: Final answer
    x = 43,174.21

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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.