Home / 158,979.60-238,469.40-40,660.20

Finding the Fourth Proportional to 158,979.60, 238,469.40 and 40,660.20

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Solution

The fourth proportional to 158,979.60, 238,469.40 and 40,660.20 is: 60,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,979.60 : 238,469.40 = 40,660.20 : x
  2. Step 2: Convert to fraction form
    158,979.60/238,469.40 = 40,660.20/x
  3. Step 3: Cross multiply
    158,979.60x = 238,469.40 × 40,660.20
  4. Step 4: Simplify right side
    158,979.60x = 9,696,213,497.88
  5. Step 5: Solve for x
    x = 9,696,213,497.88/158,979.60
  6. Step 6: Final answer
    x = 60,990.30

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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.