Home / 139,217.43-192,120.15-75,555.23

Finding the Fourth Proportional to 139,217.43, 192,120.15 and 75,555.23

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Solution

The fourth proportional to 139,217.43, 192,120.15 and 75,555.23 is: 104,266.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,217.43 : 192,120.15 = 75,555.23 : x
  2. Step 2: Convert to fraction form
    139,217.43/192,120.15 = 75,555.23/x
  3. Step 3: Cross multiply
    139,217.43x = 192,120.15 × 75,555.23
  4. Step 4: Simplify right side
    139,217.43x = 14,515,681,160.28
  5. Step 5: Solve for x
    x = 14,515,681,160.28/139,217.43
  6. Step 6: Final answer
    x = 104,266.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.