Home / 220,811.23-331,170.40-71,064.91

Finding the Fourth Proportional to 220,811.23, 331,170.40 and 71,064.91

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Solution

The fourth proportional to 220,811.23, 331,170.40 and 71,064.91 is: 106,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,811.23 : 331,170.40 = 71,064.91 : x
  2. Step 2: Convert to fraction form
    220,811.23/331,170.40 = 71,064.91/x
  3. Step 3: Cross multiply
    220,811.23x = 331,170.40 × 71,064.91
  4. Step 4: Simplify right side
    220,811.23x = 23,534,594,670.66
  5. Step 5: Solve for x
    x = 23,534,594,670.66/220,811.23
  6. Step 6: Final answer
    x = 106,582.42

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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.