Home / 127,240.89-190,832.18-57,140.25

Finding the Fourth Proportional to 127,240.89, 190,832.18 and 57,140.25

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Solution

The fourth proportional to 127,240.89, 190,832.18 and 57,140.25 is: 85,697.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,240.89 : 190,832.18 = 57,140.25 : x
  2. Step 2: Convert to fraction form
    127,240.89/190,832.18 = 57,140.25/x
  3. Step 3: Cross multiply
    127,240.89x = 190,832.18 × 57,140.25
  4. Step 4: Simplify right side
    127,240.89x = 10,904,198,187.54
  5. Step 5: Solve for x
    x = 10,904,198,187.54/127,240.89
  6. Step 6: Final answer
    x = 85,697.28

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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.