Home / 139,180.08-192,062.88-75,515.52

Finding the Fourth Proportional to 139,180.08, 192,062.88 and 75,515.52

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Solution

The fourth proportional to 139,180.08, 192,062.88 and 75,515.52 is: 104,208.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,180.08 : 192,062.88 = 75,515.52 : x
  2. Step 2: Convert to fraction form
    139,180.08/192,062.88 = 75,515.52/x
  3. Step 3: Cross multiply
    139,180.08x = 192,062.88 × 75,515.52
  4. Step 4: Simplify right side
    139,180.08x = 14,503,728,255.90
  5. Step 5: Solve for x
    x = 14,503,728,255.90/139,180.08
  6. Step 6: Final answer
    x = 104,208.36

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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.