Home / 127,105.05-190,656.21-31,043.13

Finding the Fourth Proportional to 127,105.05, 190,656.21 and 31,043.13

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Solution

The fourth proportional to 127,105.05, 190,656.21 and 31,043.13 is: 46,564.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,105.05 : 190,656.21 = 31,043.13 : x
  2. Step 2: Convert to fraction form
    127,105.05/190,656.21 = 31,043.13/x
  3. Step 3: Cross multiply
    127,105.05x = 190,656.21 × 31,043.13
  4. Step 4: Simplify right side
    127,105.05x = 5,918,565,512.34
  5. Step 5: Solve for x
    x = 5,918,565,512.34/127,105.05
  6. Step 6: Final answer
    x = 46,564.36

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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.