Home / 120,409.24-180,561.49-64,236.82

Finding the Fourth Proportional to 120,409.24, 180,561.49 and 64,236.82

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Solution

The fourth proportional to 120,409.24, 180,561.49 and 64,236.82 is: 96,327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,409.24 : 180,561.49 = 64,236.82 : x
  2. Step 2: Convert to fraction form
    120,409.24/180,561.49 = 64,236.82/x
  3. Step 3: Cross multiply
    120,409.24x = 180,561.49 × 64,236.82
  4. Step 4: Simplify right side
    120,409.24x = 11,598,695,932.06
  5. Step 5: Solve for x
    x = 11,598,695,932.06/120,409.24
  6. Step 6: Final answer
    x = 96,327.29

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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.