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Finding the Fourth Proportional to 139,944, 193,119.84 and 76,281.24

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Solution

The fourth proportional to 139,944, 193,119.84 and 76,281.24 is: 105,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,944 : 193,119.84 = 76,281.24 : x
  2. Step 2: Convert to fraction form
    139,944/193,119.84 = 76,281.24/x
  3. Step 3: Cross multiply
    139,944x = 193,119.84 × 76,281.24
  4. Step 4: Simplify right side
    139,944x = 14,731,420,863.80
  5. Step 5: Solve for x
    x = 14,731,420,863.80/139,944
  6. Step 6: Final answer
    x = 105,266.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.