Home / 157,556.22-217,427.43-85,936.02

Finding the Fourth Proportional to 157,556.22, 217,427.43 and 85,936.02

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Solution

The fourth proportional to 157,556.22, 217,427.43 and 85,936.02 is: 118,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,556.22 : 217,427.43 = 85,936.02 : x
  2. Step 2: Convert to fraction form
    157,556.22/217,427.43 = 85,936.02/x
  3. Step 3: Cross multiply
    157,556.22x = 217,427.43 × 85,936.02
  4. Step 4: Simplify right side
    157,556.22x = 18,684,847,973.03
  5. Step 5: Solve for x
    x = 18,684,847,973.03/157,556.22
  6. Step 6: Final answer
    x = 118,591.62

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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.