Home / 86,164.68-118,997.91-76,772.10

Finding the Fourth Proportional to 86,164.68, 118,997.91 and 76,772.10

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Solution

The fourth proportional to 86,164.68, 118,997.91 and 76,772.10 is: 106,026.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,164.68 : 118,997.91 = 76,772.10 : x
  2. Step 2: Convert to fraction form
    86,164.68/118,997.91 = 76,772.10/x
  3. Step 3: Cross multiply
    86,164.68x = 118,997.91 × 76,772.10
  4. Step 4: Simplify right side
    86,164.68x = 9,135,719,446.31
  5. Step 5: Solve for x
    x = 9,135,719,446.31/86,164.68
  6. Step 6: Final answer
    x = 106,026.27

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1.5x scale

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.