Home / 127,190.40-190,787.36-38,444.64

Finding the Fourth Proportional to 127,190.40, 190,787.36 and 38,444.64

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Solution

The fourth proportional to 127,190.40, 190,787.36 and 38,444.64 is: 57,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,190.40 : 190,787.36 = 38,444.64 : x
  2. Step 2: Convert to fraction form
    127,190.40/190,787.36 = 38,444.64/x
  3. Step 3: Cross multiply
    127,190.40x = 190,787.36 × 38,444.64
  4. Step 4: Simplify right side
    127,190.40x = 7,334,751,371.75
  5. Step 5: Solve for x
    x = 7,334,751,371.75/127,190.40
  6. Step 6: Final answer
    x = 57,667.49

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1.5x scale

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.