Home / 138,160.08-190,684.22-80,008.36

Finding the Fourth Proportional to 138,160.08, 190,684.22 and 80,008.36

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Solution

The fourth proportional to 138,160.08, 190,684.22 and 80,008.36 is: 110,425.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,160.08 : 190,684.22 = 80,008.36 : x
  2. Step 2: Convert to fraction form
    138,160.08/190,684.22 = 80,008.36/x
  3. Step 3: Cross multiply
    138,160.08x = 190,684.22 × 80,008.36
  4. Step 4: Simplify right side
    138,160.08x = 15,256,330,843.33
  5. Step 5: Solve for x
    x = 15,256,330,843.33/138,160.08
  6. Step 6: Final answer
    x = 110,425.03

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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.