Finding the Fourth Proportional to 157,191.79, 216,924.70 and 85,571.79
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Solution
The fourth proportional to 157,191.79, 216,924.70 and 85,571.79 is: 118,089.09
Step by Step Solution
- Step 1: Write the proportion equation
157,191.79 : 216,924.70 = 85,571.79 : x - Step 2: Convert to fraction form
157,191.79/216,924.70 = 85,571.79/x - Step 3: Cross multiply
157,191.79x = 216,924.70 × 85,571.79 - Step 4: Simplify right side
157,191.79x = 18,562,635,227.46 - Step 5: Solve for x
x = 18,562,635,227.46/157,191.79 - Step 6: Final answer
x = 118,089.09
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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.