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Finding the Fourth Proportional to 129,850.60, 194,622.30 and 96,980.20

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Solution

The fourth proportional to 129,850.60, 194,622.30 and 96,980.20 is: 145,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,850.60 : 194,622.30 = 96,980.20 : x
  2. Step 2: Convert to fraction form
    129,850.60/194,622.30 = 96,980.20/x
  3. Step 3: Cross multiply
    129,850.60x = 194,622.30 × 96,980.20
  4. Step 4: Simplify right side
    129,850.60x = 18,874,509,578.46
  5. Step 5: Solve for x
    x = 18,874,509,578.46/129,850.60
  6. Step 6: Final answer
    x = 145,355.58

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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.