Home / 139,906.32-193,070.43-76,243.97

Finding the Fourth Proportional to 139,906.32, 193,070.43 and 76,243.97

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Solution

The fourth proportional to 139,906.32, 193,070.43 and 76,243.97 is: 105,216.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,906.32 : 193,070.43 = 76,243.97 : x
  2. Step 2: Convert to fraction form
    139,906.32/193,070.43 = 76,243.97/x
  3. Step 3: Cross multiply
    139,906.32x = 193,070.43 × 76,243.97
  4. Step 4: Simplify right side
    139,906.32x = 14,720,455,107.45
  5. Step 5: Solve for x
    x = 14,720,455,107.45/139,906.32
  6. Step 6: Final answer
    x = 105,216.51

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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.