Home / 139,218.44-208,780.86-50,453.36

Finding the Fourth Proportional to 139,218.44, 208,780.86 and 50,453.36

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Solution

The fourth proportional to 139,218.44, 208,780.86 and 50,453.36 is: 75,663.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,218.44 : 208,780.86 = 50,453.36 : x
  2. Step 2: Convert to fraction form
    139,218.44/208,780.86 = 50,453.36/x
  3. Step 3: Cross multiply
    139,218.44x = 208,780.86 × 50,453.36
  4. Step 4: Simplify right side
    139,218.44x = 10,533,695,890.69
  5. Step 5: Solve for x
    x = 10,533,695,890.69/139,218.44
  6. Step 6: Final answer
    x = 75,663.08

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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.