Home / 139,036.54-208,562.94-53,647.85

Finding the Fourth Proportional to 139,036.54, 208,562.94 and 53,647.85

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Solution

The fourth proportional to 139,036.54, 208,562.94 and 53,647.85 is: 80,474.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,036.54 : 208,562.94 = 53,647.85 : x
  2. Step 2: Convert to fraction form
    139,036.54/208,562.94 = 53,647.85/x
  3. Step 3: Cross multiply
    139,036.54x = 208,562.94 × 53,647.85
  4. Step 4: Simplify right side
    139,036.54x = 11,188,953,628.94
  5. Step 5: Solve for x
    x = 11,188,953,628.94/139,036.54
  6. Step 6: Final answer
    x = 80,474.92

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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.