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Finding the Fourth Proportional to 120,750.75, 181,125.72 and 49,623.84

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Solution

The fourth proportional to 120,750.75, 181,125.72 and 49,623.84 is: 74,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,750.75 : 181,125.72 = 49,623.84 : x
  2. Step 2: Convert to fraction form
    120,750.75/181,125.72 = 49,623.84/x
  3. Step 3: Cross multiply
    120,750.75x = 181,125.72 × 49,623.84
  4. Step 4: Simplify right side
    120,750.75x = 8,988,153,749.16
  5. Step 5: Solve for x
    x = 8,988,153,749.16/120,750.75
  6. Step 6: Final answer
    x = 74,435.59

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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.