Home / 127,214.55-191,010.15-71,166.60

Finding the Fourth Proportional to 127,214.55, 191,010.15 and 71,166.60

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Solution

The fourth proportional to 127,214.55, 191,010.15 and 71,166.60 is: 106,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,214.55 : 191,010.15 = 71,166.60 : x
  2. Step 2: Convert to fraction form
    127,214.55/191,010.15 = 71,166.60/x
  3. Step 3: Cross multiply
    127,214.55x = 191,010.15 × 71,166.60
  4. Step 4: Simplify right side
    127,214.55x = 13,593,542,940.99
  5. Step 5: Solve for x
    x = 13,593,542,940.99/127,214.55
  6. Step 6: Final answer
    x = 106,855.25

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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.