Home / 105,814.20-158,722.74-39,228.60

Finding the Fourth Proportional to 105,814.20, 158,722.74 and 39,228.60

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Solution

The fourth proportional to 105,814.20, 158,722.74 and 39,228.60 is: 58,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,814.20 : 158,722.74 = 39,228.60 : x
  2. Step 2: Convert to fraction form
    105,814.20/158,722.74 = 39,228.60/x
  3. Step 3: Cross multiply
    105,814.20x = 158,722.74 × 39,228.60
  4. Step 4: Simplify right side
    105,814.20x = 6,226,470,878.36
  5. Step 5: Solve for x
    x = 6,226,470,878.36/105,814.20
  6. Step 6: Final answer
    x = 58,843.43

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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.