Home / 127,075.20-190,394.10-82,679.10

Finding the Fourth Proportional to 127,075.20, 190,394.10 and 82,679.10

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Solution

The fourth proportional to 127,075.20, 190,394.10 and 82,679.10 is: 123,876.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,075.20 : 190,394.10 = 82,679.10 : x
  2. Step 2: Convert to fraction form
    127,075.20/190,394.10 = 82,679.10/x
  3. Step 3: Cross multiply
    127,075.20x = 190,394.10 × 82,679.10
  4. Step 4: Simplify right side
    127,075.20x = 15,741,612,833.31
  5. Step 5: Solve for x
    x = 15,741,612,833.31/127,075.20
  6. Step 6: Final answer
    x = 123,876.36

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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.