Home / 115,896.12-159,940.48-68,153.88

Finding the Fourth Proportional to 115,896.12, 159,940.48 and 68,153.88

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Solution

The fourth proportional to 115,896.12, 159,940.48 and 68,153.88 is: 94,054.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,896.12 : 159,940.48 = 68,153.88 : x
  2. Step 2: Convert to fraction form
    115,896.12/159,940.48 = 68,153.88/x
  3. Step 3: Cross multiply
    115,896.12x = 159,940.48 × 68,153.88
  4. Step 4: Simplify right side
    115,896.12x = 10,900,564,281.06
  5. Step 5: Solve for x
    x = 10,900,564,281.06/115,896.12
  6. Step 6: Final answer
    x = 94,054.61

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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.