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Finding the Fourth Proportional to 132,195.40, 198,422.70 and 65,710.60

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Solution

The fourth proportional to 132,195.40, 198,422.70 and 65,710.60 is: 98,630.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,195.40 : 198,422.70 = 65,710.60 : x
  2. Step 2: Convert to fraction form
    132,195.40/198,422.70 = 65,710.60/x
  3. Step 3: Cross multiply
    132,195.40x = 198,422.70 × 65,710.60
  4. Step 4: Simplify right side
    132,195.40x = 13,038,474,670.62
  5. Step 5: Solve for x
    x = 13,038,474,670.62/132,195.40
  6. Step 6: Final answer
    x = 98,630.32

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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.