Home / 109,739.67-151,453.02-61,996.09

Finding the Fourth Proportional to 109,739.67, 151,453.02 and 61,996.09

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Solution

The fourth proportional to 109,739.67, 151,453.02 and 61,996.09 is: 85,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,739.67 : 151,453.02 = 61,996.09 : x
  2. Step 2: Convert to fraction form
    109,739.67/151,453.02 = 61,996.09/x
  3. Step 3: Cross multiply
    109,739.67x = 151,453.02 × 61,996.09
  4. Step 4: Simplify right side
    109,739.67x = 9,389,494,301.43
  5. Step 5: Solve for x
    x = 9,389,494,301.43/109,739.67
  6. Step 6: Final answer
    x = 85,561.54

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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.