Home / 119,491.20-164,775.60-79,191

Finding the Fourth Proportional to 119,491.20, 164,775.60 and 79,191

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Solution

The fourth proportional to 119,491.20, 164,775.60 and 79,191 is: 109,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,491.20 : 164,775.60 = 79,191 : x
  2. Step 2: Convert to fraction form
    119,491.20/164,775.60 = 79,191/x
  3. Step 3: Cross multiply
    119,491.20x = 164,775.60 × 79,191
  4. Step 4: Simplify right side
    119,491.20x = 13,048,744,539.60
  5. Step 5: Solve for x
    x = 13,048,744,539.60/119,491.20
  6. Step 6: Final answer
    x = 109,202.56

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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.