Home / 126,997.16-190,407.18-55,885.64

Finding the Fourth Proportional to 126,997.16, 190,407.18 and 55,885.64

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Solution

The fourth proportional to 126,997.16, 190,407.18 and 55,885.64 is: 83,789.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,997.16 : 190,407.18 = 55,885.64 : x
  2. Step 2: Convert to fraction form
    126,997.16/190,407.18 = 55,885.64/x
  3. Step 3: Cross multiply
    126,997.16x = 190,407.18 × 55,885.64
  4. Step 4: Simplify right side
    126,997.16x = 10,641,027,114.90
  5. Step 5: Solve for x
    x = 10,641,027,114.90/126,997.16
  6. Step 6: Final answer
    x = 83,789.49

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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.