Home / 132,960.40-199,570.20-66,475.60

Finding the Fourth Proportional to 132,960.40, 199,570.20 and 66,475.60

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Solution

The fourth proportional to 132,960.40, 199,570.20 and 66,475.60 is: 99,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,960.40 : 199,570.20 = 66,475.60 : x
  2. Step 2: Convert to fraction form
    132,960.40/199,570.20 = 66,475.60/x
  3. Step 3: Cross multiply
    132,960.40x = 199,570.20 × 66,475.60
  4. Step 4: Simplify right side
    132,960.40x = 13,266,548,787.12
  5. Step 5: Solve for x
    x = 13,266,548,787.12/132,960.40
  6. Step 6: Final answer
    x = 99,778.20

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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.