Finding the Fourth Proportional to 119,623.05, 165,083.54 and 68,645.12
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Solution
The fourth proportional to 119,623.05, 165,083.54 and 68,645.12 is: 94,732.40
Step by Step Solution
- Step 1: Write the proportion equation
119,623.05 : 165,083.54 = 68,645.12 : x - Step 2: Convert to fraction form
119,623.05/165,083.54 = 68,645.12/x - Step 3: Cross multiply
119,623.05x = 165,083.54 × 68,645.12 - Step 4: Simplify right side
119,623.05x = 11,332,179,172.23 - Step 5: Solve for x
x = 11,332,179,172.23/119,623.05 - Step 6: Final answer
x = 94,732.40
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1.5x scale
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.