Home / 126,908.12-190,386.20-51,012.56

Finding the Fourth Proportional to 126,908.12, 190,386.20 and 51,012.56

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Solution

The fourth proportional to 126,908.12, 190,386.20 and 51,012.56 is: 76,528.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,908.12 : 190,386.20 = 51,012.56 : x
  2. Step 2: Convert to fraction form
    126,908.12/190,386.20 = 51,012.56/x
  3. Step 3: Cross multiply
    126,908.12x = 190,386.20 × 51,012.56
  4. Step 4: Simplify right side
    126,908.12x = 9,712,087,450.67
  5. Step 5: Solve for x
    x = 9,712,087,450.67/126,908.12
  6. Step 6: Final answer
    x = 76,528.50

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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.