Finding the Fourth Proportional to 156,791.19, 216,157.61 and 107,731.32
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Solution
The fourth proportional to 156,791.19, 216,157.61 and 107,731.32 is: 148,522.02
Step by Step Solution
- Step 1: Write the proportion equation
156,791.19 : 216,157.61 = 107,731.32 : x - Step 2: Convert to fraction form
156,791.19/216,157.61 = 107,731.32/x - Step 3: Cross multiply
156,791.19x = 216,157.61 × 107,731.32 - Step 4: Simplify right side
156,791.19x = 23,286,944,112.08 - Step 5: Solve for x
x = 23,286,944,112.08/156,791.19 - Step 6: Final answer
x = 148,522.02
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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.