Home / 139,927.22-193,103.64-76,269.14

Finding the Fourth Proportional to 139,927.22, 193,103.64 and 76,269.14

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Solution

The fourth proportional to 139,927.22, 193,103.64 and 76,269.14 is: 105,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,927.22 : 193,103.64 = 76,269.14 : x
  2. Step 2: Convert to fraction form
    139,927.22/193,103.64 = 76,269.14/x
  3. Step 3: Cross multiply
    139,927.22x = 193,103.64 × 76,269.14
  4. Step 4: Simplify right side
    139,927.22x = 14,727,848,553.67
  5. Step 5: Solve for x
    x = 14,727,848,553.67/139,927.22
  6. Step 6: Final answer
    x = 105,253.64

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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.