Home / 106,341.12-159,511.68-31,455.44

Finding the Fourth Proportional to 106,341.12, 159,511.68 and 31,455.44

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Solution

The fourth proportional to 106,341.12, 159,511.68 and 31,455.44 is: 47,183.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,341.12 : 159,511.68 = 31,455.44 : x
  2. Step 2: Convert to fraction form
    106,341.12/159,511.68 = 31,455.44/x
  3. Step 3: Cross multiply
    106,341.12x = 159,511.68 × 31,455.44
  4. Step 4: Simplify right side
    106,341.12x = 5,017,510,079.54
  5. Step 5: Solve for x
    x = 5,017,510,079.54/106,341.12
  6. Step 6: Final answer
    x = 47,183.16

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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.