Home / 117,610.68-162,266.98-66,615.31

Finding the Fourth Proportional to 117,610.68, 162,266.98 and 66,615.31

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Solution

The fourth proportional to 117,610.68, 162,266.98 and 66,615.31 is: 91,908.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,610.68 : 162,266.98 = 66,615.31 : x
  2. Step 2: Convert to fraction form
    117,610.68/162,266.98 = 66,615.31/x
  3. Step 3: Cross multiply
    117,610.68x = 162,266.98 × 66,615.31
  4. Step 4: Simplify right side
    117,610.68x = 10,809,464,031.05
  5. Step 5: Solve for x
    x = 10,809,464,031.05/117,610.68
  6. Step 6: Final answer
    x = 91,908.86

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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.