Home / 301,153.31-451,739.09-76,513.78

Finding the Fourth Proportional to 301,153.31, 451,739.09 and 76,513.78

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Solution

The fourth proportional to 301,153.31, 451,739.09 and 76,513.78 is: 114,772.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,153.31 : 451,739.09 = 76,513.78 : x
  2. Step 2: Convert to fraction form
    301,153.31/451,739.09 = 76,513.78/x
  3. Step 3: Cross multiply
    301,153.31x = 451,739.09 × 76,513.78
  4. Step 4: Simplify right side
    301,153.31x = 34,564,266,105.62
  5. Step 5: Solve for x
    x = 34,564,266,105.62/301,153.31
  6. Step 6: Final answer
    x = 114,772.99

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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.