Finding the Fourth Proportional to 156,738.36, 216,292.98 and 85,116.84
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Solution
The fourth proportional to 156,738.36, 216,292.98 and 85,116.84 is: 117,458.00
Step by Step Solution
- Step 1: Write the proportion equation
156,738.36 : 216,292.98 = 85,116.84 : x - Step 2: Convert to fraction form
156,738.36/216,292.98 = 85,116.84/x - Step 3: Cross multiply
156,738.36x = 216,292.98 × 85,116.84 - Step 4: Simplify right side
156,738.36x = 18,410,174,971.78 - Step 5: Solve for x
x = 18,410,174,971.78/156,738.36 - Step 6: Final answer
x = 117,458.00
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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.