Home / 105,467.86-158,197.65-38,879.20

Finding the Fourth Proportional to 105,467.86, 158,197.65 and 38,879.20

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Solution

The fourth proportional to 105,467.86, 158,197.65 and 38,879.20 is: 58,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,467.86 : 158,197.65 = 38,879.20 : x
  2. Step 2: Convert to fraction form
    105,467.86/158,197.65 = 38,879.20/x
  3. Step 3: Cross multiply
    105,467.86x = 158,197.65 × 38,879.20
  4. Step 4: Simplify right side
    105,467.86x = 6,150,598,073.88
  5. Step 5: Solve for x
    x = 6,150,598,073.88/105,467.86
  6. Step 6: Final answer
    x = 58,317.27

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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.