Home / 105,615.14-158,429.99-30,735.90

Finding the Fourth Proportional to 105,615.14, 158,429.99 and 30,735.90

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Solution

The fourth proportional to 105,615.14, 158,429.99 and 30,735.90 is: 46,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,615.14 : 158,429.99 = 30,735.90 : x
  2. Step 2: Convert to fraction form
    105,615.14/158,429.99 = 30,735.90/x
  3. Step 3: Cross multiply
    105,615.14x = 158,429.99 × 30,735.90
  4. Step 4: Simplify right side
    105,615.14x = 4,869,488,329.64
  5. Step 5: Solve for x
    x = 4,869,488,329.64/105,615.14
  6. Step 6: Final answer
    x = 46,105.97

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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.