Finding the Fourth Proportional to 112,153.57, 154,684.42 and 71,871.08
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Solution
The fourth proportional to 112,153.57, 154,684.42 and 71,871.08 is: 99,126.02
Step by Step Solution
- Step 1: Write the proportion equation
112,153.57 : 154,684.42 = 71,871.08 : x - Step 2: Convert to fraction form
112,153.57/154,684.42 = 71,871.08/x - Step 3: Cross multiply
112,153.57x = 154,684.42 × 71,871.08 - Step 4: Simplify right side
112,153.57x = 11,117,336,661.24 - Step 5: Solve for x
x = 11,117,336,661.24/112,153.57 - Step 6: Final answer
x = 99,126.02
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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.