Home / 127,052.94-190,540.32-87,861.90

Finding the Fourth Proportional to 127,052.94, 190,540.32 and 87,861.90

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Solution

The fourth proportional to 127,052.94, 190,540.32 and 87,861.90 is: 131,765.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,052.94 : 190,540.32 = 87,861.90 : x
  2. Step 2: Convert to fraction form
    127,052.94/190,540.32 = 87,861.90/x
  3. Step 3: Cross multiply
    127,052.94x = 190,540.32 × 87,861.90
  4. Step 4: Simplify right side
    127,052.94x = 16,741,234,541.81
  5. Step 5: Solve for x
    x = 16,741,234,541.81/127,052.94
  6. Step 6: Final answer
    x = 131,765.82

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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.