Home / 127,153.12-190,747.50-38,396.56

Finding the Fourth Proportional to 127,153.12, 190,747.50 and 38,396.56

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Solution

The fourth proportional to 127,153.12, 190,747.50 and 38,396.56 is: 57,600.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,153.12 : 190,747.50 = 38,396.56 : x
  2. Step 2: Convert to fraction form
    127,153.12/190,747.50 = 38,396.56/x
  3. Step 3: Cross multiply
    127,153.12x = 190,747.50 × 38,396.56
  4. Step 4: Simplify right side
    127,153.12x = 7,324,047,828.60
  5. Step 5: Solve for x
    x = 7,324,047,828.60/127,153.12
  6. Step 6: Final answer
    x = 57,600.22

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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.