Home / 127,042.02-190,536.30-81,928.26

Finding the Fourth Proportional to 127,042.02, 190,536.30 and 81,928.26

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Solution

The fourth proportional to 127,042.02, 190,536.30 and 81,928.26 is: 122,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,042.02 : 190,536.30 = 81,928.26 : x
  2. Step 2: Convert to fraction form
    127,042.02/190,536.30 = 81,928.26/x
  3. Step 3: Cross multiply
    127,042.02x = 190,536.30 × 81,928.26
  4. Step 4: Simplify right side
    127,042.02x = 15,610,307,525.84
  5. Step 5: Solve for x
    x = 15,610,307,525.84/127,042.02
  6. Step 6: Final answer
    x = 122,875.15

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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.