Home / 121,618.37-182,131.09-68,867.93

Finding the Fourth Proportional to 121,618.37, 182,131.09 and 68,867.93

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Solution

The fourth proportional to 121,618.37, 182,131.09 and 68,867.93 is: 103,134.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,618.37 : 182,131.09 = 68,867.93 : x
  2. Step 2: Convert to fraction form
    121,618.37/182,131.09 = 68,867.93/x
  3. Step 3: Cross multiply
    121,618.37x = 182,131.09 × 68,867.93
  4. Step 4: Simplify right side
    121,618.37x = 12,542,991,156.94
  5. Step 5: Solve for x
    x = 12,542,991,156.94/121,618.37
  6. Step 6: Final answer
    x = 103,134.02

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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.