Home / 127,266.30-190,899.45-74,122.20

Finding the Fourth Proportional to 127,266.30, 190,899.45 and 74,122.20

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Solution

The fourth proportional to 127,266.30, 190,899.45 and 74,122.20 is: 111,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,266.30 : 190,899.45 = 74,122.20 : x
  2. Step 2: Convert to fraction form
    127,266.30/190,899.45 = 74,122.20/x
  3. Step 3: Cross multiply
    127,266.30x = 190,899.45 × 74,122.20
  4. Step 4: Simplify right side
    127,266.30x = 14,149,887,212.79
  5. Step 5: Solve for x
    x = 14,149,887,212.79/127,266.30
  6. Step 6: Final answer
    x = 111,183.30

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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.