Home / 217,734.45-326,601.70-67,987.57

Finding the Fourth Proportional to 217,734.45, 326,601.70 and 67,987.57

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Solution

The fourth proportional to 217,734.45, 326,601.70 and 67,987.57 is: 101,981.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,734.45 : 326,601.70 = 67,987.57 : x
  2. Step 2: Convert to fraction form
    217,734.45/326,601.70 = 67,987.57/x
  3. Step 3: Cross multiply
    217,734.45x = 326,601.70 × 67,987.57
  4. Step 4: Simplify right side
    217,734.45x = 22,204,854,954.40
  5. Step 5: Solve for x
    x = 22,204,854,954.40/217,734.45
  6. Step 6: Final answer
    x = 101,981.36

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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.