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Finding the Fourth Proportional to 78,314.00, 118,049.44 and 73,741.95

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Solution

The fourth proportional to 78,314.00, 118,049.44 and 73,741.95 is: 111,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,314.00 : 118,049.44 = 73,741.95 : x
  2. Step 2: Convert to fraction form
    78,314.00/118,049.44 = 73,741.95/x
  3. Step 3: Cross multiply
    78,314.00x = 118,049.44 × 73,741.95
  4. Step 4: Simplify right side
    78,314.00x = 8,705,195,855.92
  5. Step 5: Solve for x
    x = 8,705,195,855.92/78,314.00
  6. Step 6: Final answer
    x = 111,157.60

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.