Home / 139,291.44-192,226.08-75,633.12

Finding the Fourth Proportional to 139,291.44, 192,226.08 and 75,633.12

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Solution

The fourth proportional to 139,291.44, 192,226.08 and 75,633.12 is: 104,375.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,291.44 : 192,226.08 = 75,633.12 : x
  2. Step 2: Convert to fraction form
    139,291.44/192,226.08 = 75,633.12/x
  3. Step 3: Cross multiply
    139,291.44x = 192,226.08 × 75,633.12
  4. Step 4: Simplify right side
    139,291.44x = 14,538,658,175.77
  5. Step 5: Solve for x
    x = 14,538,658,175.77/139,291.44
  6. Step 6: Final answer
    x = 104,375.82

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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.