Home / 109,090.87-150,546.33-61,343.80

Finding the Fourth Proportional to 109,090.87, 150,546.33 and 61,343.80

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Solution

The fourth proportional to 109,090.87, 150,546.33 and 61,343.80 is: 84,654.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,090.87 : 150,546.33 = 61,343.80 : x
  2. Step 2: Convert to fraction form
    109,090.87/150,546.33 = 61,343.80/x
  3. Step 3: Cross multiply
    109,090.87x = 150,546.33 × 61,343.80
  4. Step 4: Simplify right side
    109,090.87x = 9,235,083,581.89
  5. Step 5: Solve for x
    x = 9,235,083,581.89/109,090.87
  6. Step 6: Final answer
    x = 84,654.97

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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.