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Finding the Fourth Proportional to 76,913.60, 107,416.60 and 76,913.60

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Solution

The fourth proportional to 76,913.60, 107,416.60 and 76,913.60 is: 107,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,913.60 : 107,416.60 = 76,913.60 : x
  2. Step 2: Convert to fraction form
    76,913.60/107,416.60 = 76,913.60/x
  3. Step 3: Cross multiply
    76,913.60x = 107,416.60 × 76,913.60
  4. Step 4: Simplify right side
    76,913.60x = 8,261,797,405.76
  5. Step 5: Solve for x
    x = 8,261,797,405.76/76,913.60
  6. Step 6: Final answer
    x = 107,416.60

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.