Home / 203,931.57-305,928.47-104,037.28

Finding the Fourth Proportional to 203,931.57, 305,928.47 and 104,037.28

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Solution

The fourth proportional to 203,931.57, 305,928.47 and 104,037.28 is: 156,071.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,931.57 : 305,928.47 = 104,037.28 : x
  2. Step 2: Convert to fraction form
    203,931.57/305,928.47 = 104,037.28/x
  3. Step 3: Cross multiply
    203,931.57x = 305,928.47 × 104,037.28
  4. Step 4: Simplify right side
    203,931.57x = 31,827,965,893.36
  5. Step 5: Solve for x
    x = 31,827,965,893.36/203,931.57
  6. Step 6: Final answer
    x = 156,071.79

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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.