Home / 127,930.40-191,895.60-39,183.20

Finding the Fourth Proportional to 127,930.40, 191,895.60 and 39,183.20

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Solution

The fourth proportional to 127,930.40, 191,895.60 and 39,183.20 is: 58,774.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,930.40 : 191,895.60 = 39,183.20 : x
  2. Step 2: Convert to fraction form
    127,930.40/191,895.60 = 39,183.20/x
  3. Step 3: Cross multiply
    127,930.40x = 191,895.60 × 39,183.20
  4. Step 4: Simplify right side
    127,930.40x = 7,519,083,673.92
  5. Step 5: Solve for x
    x = 7,519,083,673.92/127,930.40
  6. Step 6: Final answer
    x = 58,774.80

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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.