Home / 139,936.29-193,110.12-76,274.34

Finding the Fourth Proportional to 139,936.29, 193,110.12 and 76,274.34

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Solution

The fourth proportional to 139,936.29, 193,110.12 and 76,274.34 is: 105,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,936.29 : 193,110.12 = 76,274.34 : x
  2. Step 2: Convert to fraction form
    139,936.29/193,110.12 = 76,274.34/x
  3. Step 3: Cross multiply
    139,936.29x = 193,110.12 × 76,274.34
  4. Step 4: Simplify right side
    139,936.29x = 14,729,346,950.32
  5. Step 5: Solve for x
    x = 14,729,346,950.32/139,936.29
  6. Step 6: Final answer
    x = 105,257.52

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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.