Home / 139,517.91-192,536.07-75,857.07

Finding the Fourth Proportional to 139,517.91, 192,536.07 and 75,857.07

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Solution

The fourth proportional to 139,517.91, 192,536.07 and 75,857.07 is: 104,683.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,517.91 : 192,536.07 = 75,857.07 : x
  2. Step 2: Convert to fraction form
    139,517.91/192,536.07 = 75,857.07/x
  3. Step 3: Cross multiply
    139,517.91x = 192,536.07 × 75,857.07
  4. Step 4: Simplify right side
    139,517.91x = 14,605,222,139.51
  5. Step 5: Solve for x
    x = 14,605,222,139.51/139,517.91
  6. Step 6: Final answer
    x = 104,683.49

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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.