Home / 115,395.84-172,791.76-92,786.40

Finding the Fourth Proportional to 115,395.84, 172,791.76 and 92,786.40

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Solution

The fourth proportional to 115,395.84, 172,791.76 and 92,786.40 is: 138,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,395.84 : 172,791.76 = 92,786.40 : x
  2. Step 2: Convert to fraction form
    115,395.84/172,791.76 = 92,786.40/x
  3. Step 3: Cross multiply
    115,395.84x = 172,791.76 × 92,786.40
  4. Step 4: Simplify right side
    115,395.84x = 16,032,725,360.06
  5. Step 5: Solve for x
    x = 16,032,725,360.06/115,395.84
  6. Step 6: Final answer
    x = 138,936.77

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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.