Home / 120,782.54-181,115.58-50,643.02

Finding the Fourth Proportional to 120,782.54, 181,115.58 and 50,643.02

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Solution

The fourth proportional to 120,782.54, 181,115.58 and 50,643.02 is: 75,940.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,782.54 : 181,115.58 = 50,643.02 : x
  2. Step 2: Convert to fraction form
    120,782.54/181,115.58 = 50,643.02/x
  3. Step 3: Cross multiply
    120,782.54x = 181,115.58 × 50,643.02
  4. Step 4: Simplify right side
    120,782.54x = 9,172,239,940.25
  5. Step 5: Solve for x
    x = 9,172,239,940.25/120,782.54
  6. Step 6: Final answer
    x = 75,940.11

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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.