Home / 139,893.08-193,049.94-76,231.40

Finding the Fourth Proportional to 139,893.08, 193,049.94 and 76,231.40

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Solution

The fourth proportional to 139,893.08, 193,049.94 and 76,231.40 is: 105,197.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,893.08 : 193,049.94 = 76,231.40 : x
  2. Step 2: Convert to fraction form
    139,893.08/193,049.94 = 76,231.40/x
  3. Step 3: Cross multiply
    139,893.08x = 193,049.94 × 76,231.40
  4. Step 4: Simplify right side
    139,893.08x = 14,716,467,196.12
  5. Step 5: Solve for x
    x = 14,716,467,196.12/139,893.08
  6. Step 6: Final answer
    x = 105,197.96

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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.