Home / 99,815.38-149,730.44-28,735.16

Finding the Fourth Proportional to 99,815.38, 149,730.44 and 28,735.16

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Solution

The fourth proportional to 99,815.38, 149,730.44 and 28,735.16 is: 43,104.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,815.38 : 149,730.44 = 28,735.16 : x
  2. Step 2: Convert to fraction form
    99,815.38/149,730.44 = 28,735.16/x
  3. Step 3: Cross multiply
    99,815.38x = 149,730.44 × 28,735.16
  4. Step 4: Simplify right side
    99,815.38x = 4,302,527,257.94
  5. Step 5: Solve for x
    x = 4,302,527,257.94/99,815.38
  6. Step 6: Final answer
    x = 43,104.85

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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.