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Finding the Fourth Proportional to 120,768.60, 181,037.70 and 94,099.80

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Solution

The fourth proportional to 120,768.60, 181,037.70 and 94,099.80 is: 141,059.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,768.60 : 181,037.70 = 94,099.80 : x
  2. Step 2: Convert to fraction form
    120,768.60/181,037.70 = 94,099.80/x
  3. Step 3: Cross multiply
    120,768.60x = 181,037.70 × 94,099.80
  4. Step 4: Simplify right side
    120,768.60x = 17,035,611,362.46
  5. Step 5: Solve for x
    x = 17,035,611,362.46/120,768.60
  6. Step 6: Final answer
    x = 141,059.94

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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.