Home / 189,371.25-261,337.79-104,493.78

Finding the Fourth Proportional to 189,371.25, 261,337.79 and 104,493.78

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Solution

The fourth proportional to 189,371.25, 261,337.79 and 104,493.78 is: 144,204.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,371.25 : 261,337.79 = 104,493.78 : x
  2. Step 2: Convert to fraction form
    189,371.25/261,337.79 = 104,493.78/x
  3. Step 3: Cross multiply
    189,371.25x = 261,337.79 × 104,493.78
  4. Step 4: Simplify right side
    189,371.25x = 27,308,173,533.95
  5. Step 5: Solve for x
    x = 27,308,173,533.95/189,371.25
  6. Step 6: Final answer
    x = 144,204.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.