Home / 203,933.58-305,931.48-104,039.28

Finding the Fourth Proportional to 203,933.58, 305,931.48 and 104,039.28

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Solution

The fourth proportional to 203,933.58, 305,931.48 and 104,039.28 is: 156,074.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,933.58 : 305,931.48 = 104,039.28 : x
  2. Step 2: Convert to fraction form
    203,933.58/305,931.48 = 104,039.28/x
  3. Step 3: Cross multiply
    203,933.58x = 305,931.48 × 104,039.28
  4. Step 4: Simplify right side
    203,933.58x = 31,828,890,908.53
  5. Step 5: Solve for x
    x = 31,828,890,908.53/203,933.58
  6. Step 6: Final answer
    x = 156,074.79

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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.