Home / 97,986.24-135,085.32-66,104.64

Finding the Fourth Proportional to 97,986.24, 135,085.32 and 66,104.64

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Solution

The fourth proportional to 97,986.24, 135,085.32 and 66,104.64 is: 91,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,986.24 : 135,085.32 = 66,104.64 : x
  2. Step 2: Convert to fraction form
    97,986.24/135,085.32 = 66,104.64/x
  3. Step 3: Cross multiply
    97,986.24x = 135,085.32 × 66,104.64
  4. Step 4: Simplify right side
    97,986.24x = 8,929,766,447.88
  5. Step 5: Solve for x
    x = 8,929,766,447.88/97,986.24
  6. Step 6: Final answer
    x = 91,132.86

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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.