Home / 127,361.12-190,976-57,180.24

Finding the Fourth Proportional to 127,361.12, 190,976 and 57,180.24

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Solution

The fourth proportional to 127,361.12, 190,976 and 57,180.24 is: 85,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,361.12 : 190,976 = 57,180.24 : x
  2. Step 2: Convert to fraction form
    127,361.12/190,976 = 57,180.24/x
  3. Step 3: Cross multiply
    127,361.12x = 190,976 × 57,180.24
  4. Step 4: Simplify right side
    127,361.12x = 10,920,053,514.24
  5. Step 5: Solve for x
    x = 10,920,053,514.24/127,361.12
  6. Step 6: Final answer
    x = 85,740.87

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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.