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Finding the Fourth Proportional to 132,329.60, 198,494.40 and 57,485.60

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Solution

The fourth proportional to 132,329.60, 198,494.40 and 57,485.60 is: 86,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,329.60 : 198,494.40 = 57,485.60 : x
  2. Step 2: Convert to fraction form
    132,329.60/198,494.40 = 57,485.60/x
  3. Step 3: Cross multiply
    132,329.60x = 198,494.40 × 57,485.60
  4. Step 4: Simplify right side
    132,329.60x = 11,410,569,680.64
  5. Step 5: Solve for x
    x = 11,410,569,680.64/132,329.60
  6. Step 6: Final answer
    x = 86,228.40

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Why These Related Problems?

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