Finding the Fourth Proportional to 106,573.47, 147,082.18 and 91,515.98
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Solution
The fourth proportional to 106,573.47, 147,082.18 and 91,515.98 is: 126,301.32
Step by Step Solution
- Step 1: Write the proportion equation
106,573.47 : 147,082.18 = 91,515.98 : x - Step 2: Convert to fraction form
106,573.47/147,082.18 = 91,515.98/x - Step 3: Cross multiply
106,573.47x = 147,082.18 × 91,515.98 - Step 4: Simplify right side
106,573.47x = 13,460,369,843.24 - Step 5: Solve for x
x = 13,460,369,843.24/106,573.47 - Step 6: Final answer
x = 126,301.32
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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.