Finding the Fourth Proportional to 156,740.16, 216,305.70 and 92,213.94
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Solution
The fourth proportional to 156,740.16, 216,305.70 and 92,213.94 is: 127,257.75
Step by Step Solution
- Step 1: Write the proportion equation
156,740.16 : 216,305.70 = 92,213.94 : x - Step 2: Convert to fraction form
156,740.16/216,305.70 = 92,213.94/x - Step 3: Cross multiply
156,740.16x = 216,305.70 × 92,213.94 - Step 4: Simplify right side
156,740.16x = 19,946,400,841.46 - Step 5: Solve for x
x = 19,946,400,841.46/156,740.16 - Step 6: Final answer
x = 127,257.75
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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.