Home / 115,983.57-160,042.37-68,219.49

Finding the Fourth Proportional to 115,983.57, 160,042.37 and 68,219.49

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Solution

The fourth proportional to 115,983.57, 160,042.37 and 68,219.49 is: 94,134.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,983.57 : 160,042.37 = 68,219.49 : x
  2. Step 2: Convert to fraction form
    115,983.57/160,042.37 = 68,219.49/x
  3. Step 3: Cross multiply
    115,983.57x = 160,042.37 × 68,219.49
  4. Step 4: Simplify right side
    115,983.57x = 10,918,008,518.69
  5. Step 5: Solve for x
    x = 10,918,008,518.69/115,983.57
  6. Step 6: Final answer
    x = 94,134.10

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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.