Finding the Fourth Proportional to 91,233.68, 125,803.80 and 79,193.84
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Solution
The fourth proportional to 91,233.68, 125,803.80 and 79,193.84 is: 109,201.84
Step by Step Solution
- Step 1: Write the proportion equation
91,233.68 : 125,803.80 = 79,193.84 : x - Step 2: Convert to fraction form
91,233.68/125,803.80 = 79,193.84/x - Step 3: Cross multiply
91,233.68x = 125,803.80 × 79,193.84 - Step 4: Simplify right side
91,233.68x = 9,962,886,008.59 - Step 5: Solve for x
x = 9,962,886,008.59/91,233.68 - Step 6: Final answer
x = 109,201.84
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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.