Home / 135,521.40-203,201.10-82,968.60

Finding the Fourth Proportional to 135,521.40, 203,201.10 and 82,968.60

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Solution

The fourth proportional to 135,521.40, 203,201.10 and 82,968.60 is: 124,403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,521.40 : 203,201.10 = 82,968.60 : x
  2. Step 2: Convert to fraction form
    135,521.40/203,201.10 = 82,968.60/x
  3. Step 3: Cross multiply
    135,521.40x = 203,201.10 × 82,968.60
  4. Step 4: Simplify right side
    135,521.40x = 16,859,310,785.46
  5. Step 5: Solve for x
    x = 16,859,310,785.46/135,521.40
  6. Step 6: Final answer
    x = 124,403.31

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1.5x scale

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.