Home / 198,427.85-273,835.53-107,789

Finding the Fourth Proportional to 198,427.85, 273,835.53 and 107,789

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Solution

The fourth proportional to 198,427.85, 273,835.53 and 107,789 is: 148,751.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,427.85 : 273,835.53 = 107,789 : x
  2. Step 2: Convert to fraction form
    198,427.85/273,835.53 = 107,789/x
  3. Step 3: Cross multiply
    198,427.85x = 273,835.53 × 107,789
  4. Step 4: Simplify right side
    198,427.85x = 29,516,457,673.70
  5. Step 5: Solve for x
    x = 29,516,457,673.70/198,427.85
  6. Step 6: Final answer
    x = 148,751.59

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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.