Home / 160,974.45-222,145.60-100,580.12

Finding the Fourth Proportional to 160,974.45, 222,145.60 and 100,580.12

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Solution

The fourth proportional to 160,974.45, 222,145.60 and 100,580.12 is: 138,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,974.45 : 222,145.60 = 100,580.12 : x
  2. Step 2: Convert to fraction form
    160,974.45/222,145.60 = 100,580.12/x
  3. Step 3: Cross multiply
    160,974.45x = 222,145.60 × 100,580.12
  4. Step 4: Simplify right side
    160,974.45x = 22,343,431,105.47
  5. Step 5: Solve for x
    x = 22,343,431,105.47/160,974.45
  6. Step 6: Final answer
    x = 138,801.10

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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.