Home / 107,172.78-160,726.33-74,105.34

Finding the Fourth Proportional to 107,172.78, 160,726.33 and 74,105.34

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Solution

The fourth proportional to 107,172.78, 160,726.33 and 74,105.34 is: 111,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,172.78 : 160,726.33 = 74,105.34 : x
  2. Step 2: Convert to fraction form
    107,172.78/160,726.33 = 74,105.34/x
  3. Step 3: Cross multiply
    107,172.78x = 160,726.33 × 74,105.34
  4. Step 4: Simplify right side
    107,172.78x = 11,910,678,961.08
  5. Step 5: Solve for x
    x = 11,910,678,961.08/107,172.78
  6. Step 6: Final answer
    x = 111,135.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.