Home / 129,662.15-178,951.32-75,968.60

Finding the Fourth Proportional to 129,662.15, 178,951.32 and 75,968.60

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Solution

The fourth proportional to 129,662.15, 178,951.32 and 75,968.60 is: 104,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,662.15 : 178,951.32 = 75,968.60 : x
  2. Step 2: Convert to fraction form
    129,662.15/178,951.32 = 75,968.60/x
  3. Step 3: Cross multiply
    129,662.15x = 178,951.32 × 75,968.60
  4. Step 4: Simplify right side
    129,662.15x = 13,594,680,353.80
  5. Step 5: Solve for x
    x = 13,594,680,353.80/129,662.15
  6. Step 6: Final answer
    x = 104,846.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.