Home / 194,321.12-268,159.54-105,917.08

Finding the Fourth Proportional to 194,321.12, 268,159.54 and 105,917.08

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Solution

The fourth proportional to 194,321.12, 268,159.54 and 105,917.08 is: 146,163.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,321.12 : 268,159.54 = 105,917.08 : x
  2. Step 2: Convert to fraction form
    194,321.12/268,159.54 = 105,917.08/x
  3. Step 3: Cross multiply
    194,321.12x = 268,159.54 × 105,917.08
  4. Step 4: Simplify right side
    194,321.12x = 28,402,675,450.94
  5. Step 5: Solve for x
    x = 28,402,675,450.94/194,321.12
  6. Step 6: Final answer
    x = 146,163.61

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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.