Home / 96,896.78-145,040.58-66,734

Finding the Fourth Proportional to 96,896.78, 145,040.58 and 66,734

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Solution

The fourth proportional to 96,896.78, 145,040.58 and 66,734 is: 99,891.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,896.78 : 145,040.58 = 66,734 : x
  2. Step 2: Convert to fraction form
    96,896.78/145,040.58 = 66,734/x
  3. Step 3: Cross multiply
    96,896.78x = 145,040.58 × 66,734
  4. Step 4: Simplify right side
    96,896.78x = 9,679,138,065.72
  5. Step 5: Solve for x
    x = 9,679,138,065.72/96,896.78
  6. Step 6: Final answer
    x = 99,891.23

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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.