Home / 126,930.81-190,401.49-104,702.79

Finding the Fourth Proportional to 126,930.81, 190,401.49 and 104,702.79

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Solution

The fourth proportional to 126,930.81, 190,401.49 and 104,702.79 is: 157,058.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,930.81 : 190,401.49 = 104,702.79 : x
  2. Step 2: Convert to fraction form
    126,930.81/190,401.49 = 104,702.79/x
  3. Step 3: Cross multiply
    126,930.81x = 190,401.49 × 104,702.79
  4. Step 4: Simplify right side
    126,930.81x = 19,935,567,479.09
  5. Step 5: Solve for x
    x = 19,935,567,479.09/126,930.81
  6. Step 6: Final answer
    x = 157,058.53

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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.