Home / 220,918.50-331,175.27-86,073.55

Finding the Fourth Proportional to 220,918.50, 331,175.27 and 86,073.55

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Solution

The fourth proportional to 220,918.50, 331,175.27 and 86,073.55 is: 129,031.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,918.50 : 331,175.27 = 86,073.55 : x
  2. Step 2: Convert to fraction form
    220,918.50/331,175.27 = 86,073.55/x
  3. Step 3: Cross multiply
    220,918.50x = 331,175.27 × 86,073.55
  4. Step 4: Simplify right side
    220,918.50x = 28,505,430,548.35
  5. Step 5: Solve for x
    x = 28,505,430,548.35/220,918.50
  6. Step 6: Final answer
    x = 129,031.43

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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.