Home / 88,930.60-133,395.90-82,172.20

Finding the Fourth Proportional to 88,930.60, 133,395.90 and 82,172.20

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Solution

The fourth proportional to 88,930.60, 133,395.90 and 82,172.20 is: 123,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,930.60 : 133,395.90 = 82,172.20 : x
  2. Step 2: Convert to fraction form
    88,930.60/133,395.90 = 82,172.20/x
  3. Step 3: Cross multiply
    88,930.60x = 133,395.90 × 82,172.20
  4. Step 4: Simplify right side
    88,930.60x = 10,961,434,573.98
  5. Step 5: Solve for x
    x = 10,961,434,573.98/88,930.60
  6. Step 6: Final answer
    x = 123,258.30

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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.