Home / 126,877.02-190,111.41-82,612.14

Finding the Fourth Proportional to 126,877.02, 190,111.41 and 82,612.14

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Solution

The fourth proportional to 126,877.02, 190,111.41 and 82,612.14 is: 123,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,877.02 : 190,111.41 = 82,612.14 : x
  2. Step 2: Convert to fraction form
    126,877.02/190,111.41 = 82,612.14/x
  3. Step 3: Cross multiply
    126,877.02x = 190,111.41 × 82,612.14
  4. Step 4: Simplify right side
    126,877.02x = 15,705,510,418.52
  5. Step 5: Solve for x
    x = 15,705,510,418.52/126,877.02
  6. Step 6: Final answer
    x = 123,785.30

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1.5x scale

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.