Home / 99,054.88-136,619.44-68,839.84

Finding the Fourth Proportional to 99,054.88, 136,619.44 and 68,839.84

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Solution

The fourth proportional to 99,054.88, 136,619.44 and 68,839.84 is: 94,945.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,054.88 : 136,619.44 = 68,839.84 : x
  2. Step 2: Convert to fraction form
    99,054.88/136,619.44 = 68,839.84/x
  3. Step 3: Cross multiply
    99,054.88x = 136,619.44 × 68,839.84
  4. Step 4: Simplify right side
    99,054.88x = 9,404,860,390.49
  5. Step 5: Solve for x
    x = 9,404,860,390.49/99,054.88
  6. Step 6: Final answer
    x = 94,945.96

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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.