Home / 139,236.28-208,682.84-54,911.62

Finding the Fourth Proportional to 139,236.28, 208,682.84 and 54,911.62

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Solution

The fourth proportional to 139,236.28, 208,682.84 and 54,911.62 is: 82,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,236.28 : 208,682.84 = 54,911.62 : x
  2. Step 2: Convert to fraction form
    139,236.28/208,682.84 = 54,911.62/x
  3. Step 3: Cross multiply
    139,236.28x = 208,682.84 × 54,911.62
  4. Step 4: Simplify right side
    139,236.28x = 11,459,112,810.60
  5. Step 5: Solve for x
    x = 11,459,112,810.60/139,236.28
  6. Step 6: Final answer
    x = 82,299.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.