Home / 126,786.51-190,211.36-38,041.65

Finding the Fourth Proportional to 126,786.51, 190,211.36 and 38,041.65

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Solution

The fourth proportional to 126,786.51, 190,211.36 and 38,041.65 is: 57,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,786.51 : 190,211.36 = 38,041.65 : x
  2. Step 2: Convert to fraction form
    126,786.51/190,211.36 = 38,041.65/x
  3. Step 3: Cross multiply
    126,786.51x = 190,211.36 × 38,041.65
  4. Step 4: Simplify right side
    126,786.51x = 7,235,953,983.14
  5. Step 5: Solve for x
    x = 7,235,953,983.14/126,786.51
  6. Step 6: Final answer
    x = 57,071.95

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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.