Home / 126,137.72-174,100.38-75,827

Finding the Fourth Proportional to 126,137.72, 174,100.38 and 75,827

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Solution

The fourth proportional to 126,137.72, 174,100.38 and 75,827 is: 104,659.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,137.72 : 174,100.38 = 75,827 : x
  2. Step 2: Convert to fraction form
    126,137.72/174,100.38 = 75,827/x
  3. Step 3: Cross multiply
    126,137.72x = 174,100.38 × 75,827
  4. Step 4: Simplify right side
    126,137.72x = 13,201,509,514.26
  5. Step 5: Solve for x
    x = 13,201,509,514.26/126,137.72
  6. Step 6: Final answer
    x = 104,659.49

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1.5x scale

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.