Finding the Fourth Proportional to 155,663.28, 214,843.32 and 122,070.96
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Solution
The fourth proportional to 155,663.28, 214,843.32 and 122,070.96 is: 168,479.88
Step by Step Solution
- Step 1: Write the proportion equation
155,663.28 : 214,843.32 = 122,070.96 : x - Step 2: Convert to fraction form
155,663.28/214,843.32 = 122,070.96/x - Step 3: Cross multiply
155,663.28x = 214,843.32 × 122,070.96 - Step 4: Simplify right side
155,663.28x = 26,226,130,321.99 - Step 5: Solve for x
x = 26,226,130,321.99/155,663.28 - Step 6: Final answer
x = 168,479.88
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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.