Home / 134,882.78-186,138.26-74,453.45

Finding the Fourth Proportional to 134,882.78, 186,138.26 and 74,453.45

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Solution

The fourth proportional to 134,882.78, 186,138.26 and 74,453.45 is: 102,745.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,882.78 : 186,138.26 = 74,453.45 : x
  2. Step 2: Convert to fraction form
    134,882.78/186,138.26 = 74,453.45/x
  3. Step 3: Cross multiply
    134,882.78x = 186,138.26 × 74,453.45
  4. Step 4: Simplify right side
    134,882.78x = 13,858,635,634.00
  5. Step 5: Solve for x
    x = 13,858,635,634.00/134,882.78
  6. Step 6: Final answer
    x = 102,745.77

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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.