Home / 126,561.58-190,137.60-74,008

Finding the Fourth Proportional to 126,561.58, 190,137.60 and 74,008

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Solution

The fourth proportional to 126,561.58, 190,137.60 and 74,008 is: 111,184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,561.58 : 190,137.60 = 74,008 : x
  2. Step 2: Convert to fraction form
    126,561.58/190,137.60 = 74,008/x
  3. Step 3: Cross multiply
    126,561.58x = 190,137.60 × 74,008
  4. Step 4: Simplify right side
    126,561.58x = 14,071,703,500.80
  5. Step 5: Solve for x
    x = 14,071,703,500.80/126,561.58
  6. Step 6: Final answer
    x = 111,184.64

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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.