Home / 82,014.20-122,955.60-75,453.20

Finding the Fourth Proportional to 82,014.20, 122,955.60 and 75,453.20

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Solution

The fourth proportional to 82,014.20, 122,955.60 and 75,453.20 is: 113,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,014.20 : 122,955.60 = 75,453.20 : x
  2. Step 2: Convert to fraction form
    82,014.20/122,955.60 = 75,453.20/x
  3. Step 3: Cross multiply
    82,014.20x = 122,955.60 × 75,453.20
  4. Step 4: Simplify right side
    82,014.20x = 9,277,393,477.92
  5. Step 5: Solve for x
    x = 9,277,393,477.92/82,014.20
  6. Step 6: Final answer
    x = 113,119.36

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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.