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Finding the Fourth Proportional to 121,144.01, 167,160.78 and 72,735.71

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Solution

The fourth proportional to 121,144.01, 167,160.78 and 72,735.71 is: 100,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,144.01 : 167,160.78 = 72,735.71 : x
  2. Step 2: Convert to fraction form
    121,144.01/167,160.78 = 72,735.71/x
  3. Step 3: Cross multiply
    121,144.01x = 167,160.78 × 72,735.71
  4. Step 4: Simplify right side
    121,144.01x = 12,158,557,181.65
  5. Step 5: Solve for x
    x = 12,158,557,181.65/121,144.01
  6. Step 6: Final answer
    x = 100,364.50

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