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Finding the Fourth Proportional to 118,350.40, 177,525.60 and 87,246.40

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Solution

The fourth proportional to 118,350.40, 177,525.60 and 87,246.40 is: 130,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,350.40 : 177,525.60 = 87,246.40 : x
  2. Step 2: Convert to fraction form
    118,350.40/177,525.60 = 87,246.40/x
  3. Step 3: Cross multiply
    118,350.40x = 177,525.60 × 87,246.40
  4. Step 4: Simplify right side
    118,350.40x = 15,488,469,507.84
  5. Step 5: Solve for x
    x = 15,488,469,507.84/118,350.40
  6. Step 6: Final answer
    x = 130,869.60

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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.