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Finding the Fourth Proportional to 117,706.20, 176,559.30 and 51,221.40

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Solution

The fourth proportional to 117,706.20, 176,559.30 and 51,221.40 is: 76,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,706.20 : 176,559.30 = 51,221.40 : x
  2. Step 2: Convert to fraction form
    117,706.20/176,559.30 = 51,221.40/x
  3. Step 3: Cross multiply
    117,706.20x = 176,559.30 × 51,221.40
  4. Step 4: Simplify right side
    117,706.20x = 9,043,614,529.02
  5. Step 5: Solve for x
    x = 9,043,614,529.02/117,706.20
  6. Step 6: Final answer
    x = 76,832.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.