Home / 203,904.02-305,859.11-70,788.51

Finding the Fourth Proportional to 203,904.02, 305,859.11 and 70,788.51

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Solution

The fourth proportional to 203,904.02, 305,859.11 and 70,788.51 is: 106,183.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,904.02 : 305,859.11 = 70,788.51 : x
  2. Step 2: Convert to fraction form
    203,904.02/305,859.11 = 70,788.51/x
  3. Step 3: Cross multiply
    203,904.02x = 305,859.11 × 70,788.51
  4. Step 4: Simplify right side
    203,904.02x = 21,651,310,760.84
  5. Step 5: Solve for x
    x = 21,651,310,760.84/203,904.02
  6. Step 6: Final answer
    x = 106,183.83

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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.