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Finding the Fourth Proportional to 113,850.88, 157,123.20 and 66,119.20

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Solution

The fourth proportional to 113,850.88, 157,123.20 and 66,119.20 is: 91,249.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,850.88 : 157,123.20 = 66,119.20 : x
  2. Step 2: Convert to fraction form
    113,850.88/157,123.20 = 66,119.20/x
  3. Step 3: Cross multiply
    113,850.88x = 157,123.20 × 66,119.20
  4. Step 4: Simplify right side
    113,850.88x = 10,388,860,285.44
  5. Step 5: Solve for x
    x = 10,388,860,285.44/113,850.88
  6. Step 6: Final answer
    x = 91,249.71

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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.