Finding the Fourth Proportional to 157,645.48, 236,542.62 and 78,766.12
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Solution
The fourth proportional to 157,645.48, 236,542.62 and 78,766.12 is: 118,186.35
Step by Step Solution
- Step 1: Write the proportion equation
157,645.48 : 236,542.62 = 78,766.12 : x - Step 2: Convert to fraction form
157,645.48/236,542.62 = 78,766.12/x - Step 3: Cross multiply
157,645.48x = 236,542.62 × 78,766.12 - Step 4: Simplify right side
157,645.48x = 18,631,544,392.03 - Step 5: Solve for x
x = 18,631,544,392.03/157,645.48 - Step 6: Final answer
x = 118,186.35
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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.