Home / 127,107.57-190,662.65-38,361.81

Finding the Fourth Proportional to 127,107.57, 190,662.65 and 38,361.81

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Solution

The fourth proportional to 127,107.57, 190,662.65 and 38,361.81 is: 57,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,107.57 : 190,662.65 = 38,361.81 : x
  2. Step 2: Convert to fraction form
    127,107.57/190,662.65 = 38,361.81/x
  3. Step 3: Cross multiply
    127,107.57x = 190,662.65 × 38,361.81
  4. Step 4: Simplify right side
    127,107.57x = 7,314,164,161.59
  5. Step 5: Solve for x
    x = 7,314,164,161.59/127,107.57
  6. Step 6: Final answer
    x = 57,543.10

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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.