Home / 127,254.40-190,881.60-103,634.80

Finding the Fourth Proportional to 127,254.40, 190,881.60 and 103,634.80

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Solution

The fourth proportional to 127,254.40, 190,881.60 and 103,634.80 is: 155,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,254.40 : 190,881.60 = 103,634.80 : x
  2. Step 2: Convert to fraction form
    127,254.40/190,881.60 = 103,634.80/x
  3. Step 3: Cross multiply
    127,254.40x = 190,881.60 × 103,634.80
  4. Step 4: Simplify right side
    127,254.40x = 19,781,976,439.68
  5. Step 5: Solve for x
    x = 19,781,976,439.68/127,254.40
  6. Step 6: Final answer
    x = 155,452.20

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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.