Home / 126,723.74-174,878.30-68,580.35

Finding the Fourth Proportional to 126,723.74, 174,878.30 and 68,580.35

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Solution

The fourth proportional to 126,723.74, 174,878.30 and 68,580.35 is: 94,640.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,723.74 : 174,878.30 = 68,580.35 : x
  2. Step 2: Convert to fraction form
    126,723.74/174,878.30 = 68,580.35/x
  3. Step 3: Cross multiply
    126,723.74x = 174,878.30 × 68,580.35
  4. Step 4: Simplify right side
    126,723.74x = 11,993,215,287.15
  5. Step 5: Solve for x
    x = 11,993,215,287.15/126,723.74
  6. Step 6: Final answer
    x = 94,640.64

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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.