Home / 127,003.90-190,372.49-42,734.81

Finding the Fourth Proportional to 127,003.90, 190,372.49 and 42,734.81

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Solution

The fourth proportional to 127,003.90, 190,372.49 and 42,734.81 is: 64,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,003.90 : 190,372.49 = 42,734.81 : x
  2. Step 2: Convert to fraction form
    127,003.90/190,372.49 = 42,734.81/x
  3. Step 3: Cross multiply
    127,003.90x = 190,372.49 × 42,734.81
  4. Step 4: Simplify right side
    127,003.90x = 8,135,532,189.38
  5. Step 5: Solve for x
    x = 8,135,532,189.38/127,003.90
  6. Step 6: Final answer
    x = 64,057.34

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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.