Home / 117,837.90-162,616.08-66,860.64

Finding the Fourth Proportional to 117,837.90, 162,616.08 and 66,860.64

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Solution

The fourth proportional to 117,837.90, 162,616.08 and 66,860.64 is: 92,267.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,837.90 : 162,616.08 = 66,860.64 : x
  2. Step 2: Convert to fraction form
    117,837.90/162,616.08 = 66,860.64/x
  3. Step 3: Cross multiply
    117,837.90x = 162,616.08 × 66,860.64
  4. Step 4: Simplify right side
    117,837.90x = 10,872,615,183.09
  5. Step 5: Solve for x
    x = 10,872,615,183.09/117,837.90
  6. Step 6: Final answer
    x = 92,267.56

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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.