Home / 127,194.40-190,718.70-38,434.60

Finding the Fourth Proportional to 127,194.40, 190,718.70 and 38,434.60

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Solution

The fourth proportional to 127,194.40, 190,718.70 and 38,434.60 is: 57,629.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,194.40 : 190,718.70 = 38,434.60 : x
  2. Step 2: Convert to fraction form
    127,194.40/190,718.70 = 38,434.60/x
  3. Step 3: Cross multiply
    127,194.40x = 190,718.70 × 38,434.60
  4. Step 4: Simplify right side
    127,194.40x = 7,330,196,947.02
  5. Step 5: Solve for x
    x = 7,330,196,947.02/127,194.40
  6. Step 6: Final answer
    x = 57,629.87

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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.