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Finding the Fourth Proportional to 116,506.60, 174,891.30 and 77,140.60

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Solution

The fourth proportional to 116,506.60, 174,891.30 and 77,140.60 is: 115,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,506.60 : 174,891.30 = 77,140.60 : x
  2. Step 2: Convert to fraction form
    116,506.60/174,891.30 = 77,140.60/x
  3. Step 3: Cross multiply
    116,506.60x = 174,891.30 × 77,140.60
  4. Step 4: Simplify right side
    116,506.60x = 13,491,219,816.78
  5. Step 5: Solve for x
    x = 13,491,219,816.78/116,506.60
  6. Step 6: Final answer
    x = 115,797.90

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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.