Home / 199,105.64-274,765.80-109,681.64

Finding the Fourth Proportional to 199,105.64, 274,765.80 and 109,681.64

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Solution

The fourth proportional to 199,105.64, 274,765.80 and 109,681.64 is: 151,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,105.64 : 274,765.80 = 109,681.64 : x
  2. Step 2: Convert to fraction form
    199,105.64/274,765.80 = 109,681.64/x
  3. Step 3: Cross multiply
    199,105.64x = 274,765.80 × 109,681.64
  4. Step 4: Simplify right side
    199,105.64x = 30,136,763,559.91
  5. Step 5: Solve for x
    x = 30,136,763,559.91/199,105.64
  6. Step 6: Final answer
    x = 151,360.67

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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.