Home / 105,836.85-158,672.04-72,455.73

Finding the Fourth Proportional to 105,836.85, 158,672.04 and 72,455.73

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Solution

The fourth proportional to 105,836.85, 158,672.04 and 72,455.73 is: 108,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,836.85 : 158,672.04 = 72,455.73 : x
  2. Step 2: Convert to fraction form
    105,836.85/158,672.04 = 72,455.73/x
  3. Step 3: Cross multiply
    105,836.85x = 158,672.04 × 72,455.73
  4. Step 4: Simplify right side
    105,836.85x = 11,496,698,488.79
  5. Step 5: Solve for x
    x = 11,496,698,488.79/105,836.85
  6. Step 6: Final answer
    x = 108,626.61

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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.