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Finding the Fourth Proportional to 119,168.52, 164,454.60 and 65,455.80

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Solution

The fourth proportional to 119,168.52, 164,454.60 and 65,455.80 is: 90,330.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,168.52 : 164,454.60 = 65,455.80 : x
  2. Step 2: Convert to fraction form
    119,168.52/164,454.60 = 65,455.80/x
  3. Step 3: Cross multiply
    119,168.52x = 164,454.60 × 65,455.80
  4. Step 4: Simplify right side
    119,168.52x = 10,764,507,406.68
  5. Step 5: Solve for x
    x = 10,764,507,406.68/119,168.52
  6. Step 6: Final answer
    x = 90,330.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.