Home / 217,739.70-326,609.58-67,992.81

Finding the Fourth Proportional to 217,739.70, 326,609.58 and 67,992.81

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Solution

The fourth proportional to 217,739.70, 326,609.58 and 67,992.81 is: 101,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,739.70 : 326,609.58 = 67,992.81 : x
  2. Step 2: Convert to fraction form
    217,739.70/326,609.58 = 67,992.81/x
  3. Step 3: Cross multiply
    217,739.70x = 326,609.58 × 67,992.81
  4. Step 4: Simplify right side
    217,739.70x = 22,207,103,117.12
  5. Step 5: Solve for x
    x = 22,207,103,117.12/217,739.70
  6. Step 6: Final answer
    x = 101,989.22

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1.5x scale

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.