Home / 137,179.20-189,299.58-75,922.06

Finding the Fourth Proportional to 137,179.20, 189,299.58 and 75,922.06

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Solution

The fourth proportional to 137,179.20, 189,299.58 and 75,922.06 is: 104,768.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,179.20 : 189,299.58 = 75,922.06 : x
  2. Step 2: Convert to fraction form
    137,179.20/189,299.58 = 75,922.06/x
  3. Step 3: Cross multiply
    137,179.20x = 189,299.58 × 75,922.06
  4. Step 4: Simplify right side
    137,179.20x = 14,372,014,070.73
  5. Step 5: Solve for x
    x = 14,372,014,070.73/137,179.20
  6. Step 6: Final answer
    x = 104,768.17

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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.