Home / 84,505.02-126,704.07-71,975.94

Finding the Fourth Proportional to 84,505.02, 126,704.07 and 71,975.94

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Solution

The fourth proportional to 84,505.02, 126,704.07 and 71,975.94 is: 107,918.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,505.02 : 126,704.07 = 71,975.94 : x
  2. Step 2: Convert to fraction form
    84,505.02/126,704.07 = 71,975.94/x
  3. Step 3: Cross multiply
    84,505.02x = 126,704.07 × 71,975.94
  4. Step 4: Simplify right side
    84,505.02x = 9,119,644,540.08
  5. Step 5: Solve for x
    x = 9,119,644,540.08/84,505.02
  6. Step 6: Final answer
    x = 107,918.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.