Home / 120,521.53-180,709.37-53,949.25

Finding the Fourth Proportional to 120,521.53, 180,709.37 and 53,949.25

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Solution

The fourth proportional to 120,521.53, 180,709.37 and 53,949.25 is: 80,891.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,521.53 : 180,709.37 = 53,949.25 : x
  2. Step 2: Convert to fraction form
    120,521.53/180,709.37 = 53,949.25/x
  3. Step 3: Cross multiply
    120,521.53x = 180,709.37 × 53,949.25
  4. Step 4: Simplify right side
    120,521.53x = 9,749,134,979.47
  5. Step 5: Solve for x
    x = 9,749,134,979.47/120,521.53
  6. Step 6: Final answer
    x = 80,891.23

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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.