Home / 121,359.48-182,121.78-74,469.24

Finding the Fourth Proportional to 121,359.48, 182,121.78 and 74,469.24

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Solution

The fourth proportional to 121,359.48, 182,121.78 and 74,469.24 is: 111,754.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,359.48 : 182,121.78 = 74,469.24 : x
  2. Step 2: Convert to fraction form
    121,359.48/182,121.78 = 74,469.24/x
  3. Step 3: Cross multiply
    121,359.48x = 182,121.78 × 74,469.24
  4. Step 4: Simplify right side
    121,359.48x = 13,562,470,544.05
  5. Step 5: Solve for x
    x = 13,562,470,544.05/121,359.48
  6. Step 6: Final answer
    x = 111,754.52

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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.