Home / 120,806.40-181,137.82-45,932.03

Finding the Fourth Proportional to 120,806.40, 181,137.82 and 45,932.03

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Solution

The fourth proportional to 120,806.40, 181,137.82 and 45,932.03 is: 68,870.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,806.40 : 181,137.82 = 45,932.03 : x
  2. Step 2: Convert to fraction form
    120,806.40/181,137.82 = 45,932.03/x
  3. Step 3: Cross multiply
    120,806.40x = 181,137.82 × 45,932.03
  4. Step 4: Simplify right side
    120,806.40x = 8,320,027,782.37
  5. Step 5: Solve for x
    x = 8,320,027,782.37/120,806.40
  6. Step 6: Final answer
    x = 68,870.75

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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.