Home / 199,158.90-274,835.81-108,515.62

Finding the Fourth Proportional to 199,158.90, 274,835.81 and 108,515.62

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Solution

The fourth proportional to 199,158.90, 274,835.81 and 108,515.62 is: 149,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,158.90 : 274,835.81 = 108,515.62 : x
  2. Step 2: Convert to fraction form
    199,158.90/274,835.81 = 108,515.62/x
  3. Step 3: Cross multiply
    199,158.90x = 274,835.81 × 108,515.62
  4. Step 4: Simplify right side
    199,158.90x = 29,823,976,403.60
  5. Step 5: Solve for x
    x = 29,823,976,403.60/199,158.90
  6. Step 6: Final answer
    x = 149,749.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.