Home / 171,331.26-236,511.27-128,900.22

Finding the Fourth Proportional to 171,331.26, 236,511.27 and 128,900.22

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Solution

The fourth proportional to 171,331.26, 236,511.27 and 128,900.22 is: 177,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,331.26 : 236,511.27 = 128,900.22 : x
  2. Step 2: Convert to fraction form
    171,331.26/236,511.27 = 128,900.22/x
  3. Step 3: Cross multiply
    171,331.26x = 236,511.27 × 128,900.22
  4. Step 4: Simplify right side
    171,331.26x = 30,486,354,735.48
  5. Step 5: Solve for x
    x = 30,486,354,735.48/171,331.26
  6. Step 6: Final answer
    x = 177,938.08

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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.