Home / 126,995.12-190,453.79-87,804.08

Finding the Fourth Proportional to 126,995.12, 190,453.79 and 87,804.08

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Solution

The fourth proportional to 126,995.12, 190,453.79 and 87,804.08 is: 131,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,995.12 : 190,453.79 = 87,804.08 : x
  2. Step 2: Convert to fraction form
    126,995.12/190,453.79 = 87,804.08/x
  3. Step 3: Cross multiply
    126,995.12x = 190,453.79 × 87,804.08
  4. Step 4: Simplify right side
    126,995.12x = 16,722,619,813.46
  5. Step 5: Solve for x
    x = 16,722,619,813.46/126,995.12
  6. Step 6: Final answer
    x = 131,679.23

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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.