Home / 126,619.20-174,804.48-84,240

Finding the Fourth Proportional to 126,619.20, 174,804.48 and 84,240

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Solution

The fourth proportional to 126,619.20, 174,804.48 and 84,240 is: 116,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,619.20 : 174,804.48 = 84,240 : x
  2. Step 2: Convert to fraction form
    126,619.20/174,804.48 = 84,240/x
  3. Step 3: Cross multiply
    126,619.20x = 174,804.48 × 84,240
  4. Step 4: Simplify right side
    126,619.20x = 14,725,529,395.20
  5. Step 5: Solve for x
    x = 14,725,529,395.20/126,619.20
  6. Step 6: Final answer
    x = 116,297.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.