Home / 129,112.08-178,124.74-95,200.84

Finding the Fourth Proportional to 129,112.08, 178,124.74 and 95,200.84

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Solution

The fourth proportional to 129,112.08, 178,124.74 and 95,200.84 is: 131,340.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,112.08 : 178,124.74 = 95,200.84 : x
  2. Step 2: Convert to fraction form
    129,112.08/178,124.74 = 95,200.84/x
  3. Step 3: Cross multiply
    129,112.08x = 178,124.74 × 95,200.84
  4. Step 4: Simplify right side
    129,112.08x = 16,957,624,872.78
  5. Step 5: Solve for x
    x = 16,957,624,872.78/129,112.08
  6. Step 6: Final answer
    x = 131,340.34

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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.