Home / 115,972.57-160,027.21-68,208.49

Finding the Fourth Proportional to 115,972.57, 160,027.21 and 68,208.49

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Solution

The fourth proportional to 115,972.57, 160,027.21 and 68,208.49 is: 94,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,972.57 : 160,027.21 = 68,208.49 : x
  2. Step 2: Convert to fraction form
    115,972.57/160,027.21 = 68,208.49/x
  3. Step 3: Cross multiply
    115,972.57x = 160,027.21 × 68,208.49
  4. Step 4: Simplify right side
    115,972.57x = 10,915,214,011.97
  5. Step 5: Solve for x
    x = 10,915,214,011.97/115,972.57
  6. Step 6: Final answer
    x = 94,118.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.