Finding the Fourth Proportional to 118,058.58, 162,921.36 and 67,074.09
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Solution
The fourth proportional to 118,058.58, 162,921.36 and 67,074.09 is: 92,562.54
Step by Step Solution
- Step 1: Write the proportion equation
118,058.58 : 162,921.36 = 67,074.09 : x - Step 2: Convert to fraction form
118,058.58/162,921.36 = 67,074.09/x - Step 3: Cross multiply
118,058.58x = 162,921.36 × 67,074.09 - Step 4: Simplify right side
118,058.58x = 10,927,801,604.14 - Step 5: Solve for x
x = 10,927,801,604.14/118,058.58 - Step 6: Final answer
x = 92,562.54
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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.