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Finding the Fourth Proportional to 111,713.60, 167,764.80 and 108,214.40

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Solution

The fourth proportional to 111,713.60, 167,764.80 and 108,214.40 is: 162,509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,713.60 : 167,764.80 = 108,214.40 : x
  2. Step 2: Convert to fraction form
    111,713.60/167,764.80 = 108,214.40/x
  3. Step 3: Cross multiply
    111,713.60x = 167,764.80 × 108,214.40
  4. Step 4: Simplify right side
    111,713.60x = 18,154,567,173.12
  5. Step 5: Solve for x
    x = 18,154,567,173.12/111,713.60
  6. Step 6: Final answer
    x = 162,509.91

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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.