Finding the Fourth Proportional to 157,957.75, 236,936.63 and 47,149.75
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Solution
The fourth proportional to 157,957.75, 236,936.63 and 47,149.75 is: 70,724.63
Step by Step Solution
- Step 1: Write the proportion equation
157,957.75 : 236,936.63 = 47,149.75 : x - Step 2: Convert to fraction form
157,957.75/236,936.63 = 47,149.75/x - Step 3: Cross multiply
157,957.75x = 236,936.63 × 47,149.75 - Step 4: Simplify right side
157,957.75x = 11,171,502,870.34 - Step 5: Solve for x
x = 11,171,502,870.34/157,957.75 - Step 6: Final answer
x = 70,724.63
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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.