Home / 126,799.32-190,127.85-86,863.41

Finding the Fourth Proportional to 126,799.32, 190,127.85 and 86,863.41

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Solution

The fourth proportional to 126,799.32, 190,127.85 and 86,863.41 is: 130,246.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,799.32 : 190,127.85 = 86,863.41 : x
  2. Step 2: Convert to fraction form
    126,799.32/190,127.85 = 86,863.41/x
  3. Step 3: Cross multiply
    126,799.32x = 190,127.85 × 86,863.41
  4. Step 4: Simplify right side
    126,799.32x = 16,515,153,386.97
  5. Step 5: Solve for x
    x = 16,515,153,386.97/126,799.32
  6. Step 6: Final answer
    x = 130,246.39

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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.