Home / 127,146.20-190,805.70-70,986.20

Finding the Fourth Proportional to 127,146.20, 190,805.70 and 70,986.20

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Solution

The fourth proportional to 127,146.20, 190,805.70 and 70,986.20 is: 106,527.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,146.20 : 190,805.70 = 70,986.20 : x
  2. Step 2: Convert to fraction form
    127,146.20/190,805.70 = 70,986.20/x
  3. Step 3: Cross multiply
    127,146.20x = 190,805.70 × 70,986.20
  4. Step 4: Simplify right side
    127,146.20x = 13,544,571,581.34
  5. Step 5: Solve for x
    x = 13,544,571,581.34/127,146.20
  6. Step 6: Final answer
    x = 106,527.54

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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.