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Finding the Fourth Proportional to 120,392.49, 179,856.60 and 77,926.62

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Solution

The fourth proportional to 120,392.49, 179,856.60 and 77,926.62 is: 116,416.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,392.49 : 179,856.60 = 77,926.62 : x
  2. Step 2: Convert to fraction form
    120,392.49/179,856.60 = 77,926.62/x
  3. Step 3: Cross multiply
    120,392.49x = 179,856.60 × 77,926.62
  4. Step 4: Simplify right side
    120,392.49x = 14,015,616,922.69
  5. Step 5: Solve for x
    x = 14,015,616,922.69/120,392.49
  6. Step 6: Final answer
    x = 116,416.04

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.