Home / 199,158.40-274,835.12-108,515.12

Finding the Fourth Proportional to 199,158.40, 274,835.12 and 108,515.12

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Solution

The fourth proportional to 199,158.40, 274,835.12 and 108,515.12 is: 149,748.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,158.40 : 274,835.12 = 108,515.12 : x
  2. Step 2: Convert to fraction form
    199,158.40/274,835.12 = 108,515.12/x
  3. Step 3: Cross multiply
    199,158.40x = 274,835.12 × 108,515.12
  4. Step 4: Simplify right side
    199,158.40x = 29,823,764,381.55
  5. Step 5: Solve for x
    x = 29,823,764,381.55/199,158.40
  6. Step 6: Final answer
    x = 149,748.97

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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.