Finding the Fourth Proportional to 156,881.57, 216,497.99 and 85,261.77
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Solution
The fourth proportional to 156,881.57, 216,497.99 and 85,261.77 is: 117,662.02
Step by Step Solution
- Step 1: Write the proportion equation
156,881.57 : 216,497.99 = 85,261.77 : x - Step 2: Convert to fraction form
156,881.57/216,497.99 = 85,261.77/x - Step 3: Cross multiply
156,881.57x = 216,497.99 × 85,261.77 - Step 4: Simplify right side
156,881.57x = 18,459,002,042.00 - Step 5: Solve for x
x = 18,459,002,042.00/156,881.57 - Step 6: Final answer
x = 117,662.02
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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.