Home / 126,126.03-174,058.12-75,131.80

Finding the Fourth Proportional to 126,126.03, 174,058.12 and 75,131.80

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Solution

The fourth proportional to 126,126.03, 174,058.12 and 75,131.80 is: 103,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,126.03 : 174,058.12 = 75,131.80 : x
  2. Step 2: Convert to fraction form
    126,126.03/174,058.12 = 75,131.80/x
  3. Step 3: Cross multiply
    126,126.03x = 174,058.12 × 75,131.80
  4. Step 4: Simplify right side
    126,126.03x = 13,077,299,860.22
  5. Step 5: Solve for x
    x = 13,077,299,860.22/126,126.03
  6. Step 6: Final answer
    x = 103,684.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.