Home / 139,028.41-208,553.55-54,782.74

Finding the Fourth Proportional to 139,028.41, 208,553.55 and 54,782.74

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Solution

The fourth proportional to 139,028.41, 208,553.55 and 54,782.74 is: 82,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,028.41 : 208,553.55 = 54,782.74 : x
  2. Step 2: Convert to fraction form
    139,028.41/208,553.55 = 54,782.74/x
  3. Step 3: Cross multiply
    139,028.41x = 208,553.55 × 54,782.74
  4. Step 4: Simplify right side
    139,028.41x = 11,425,134,905.73
  5. Step 5: Solve for x
    x = 11,425,134,905.73/139,028.41
  6. Step 6: Final answer
    x = 82,178.42

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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.