Home / 127,936.72-191,822.96-53,108.51

Finding the Fourth Proportional to 127,936.72, 191,822.96 and 53,108.51

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Solution

The fourth proportional to 127,936.72, 191,822.96 and 53,108.51 is: 79,628.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,936.72 : 191,822.96 = 53,108.51 : x
  2. Step 2: Convert to fraction form
    127,936.72/191,822.96 = 53,108.51/x
  3. Step 3: Cross multiply
    127,936.72x = 191,822.96 × 53,108.51
  4. Step 4: Simplify right side
    127,936.72x = 10,187,431,803.40
  5. Step 5: Solve for x
    x = 10,187,431,803.40/127,936.72
  6. Step 6: Final answer
    x = 79,628.68

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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.