Finding the Fourth Proportional to 155,769.48, 214,961.58 and 84,149.28
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Solution
The fourth proportional to 155,769.48, 214,961.58 and 84,149.28 is: 116,125.84
Step by Step Solution
- Step 1: Write the proportion equation
155,769.48 : 214,961.58 = 84,149.28 : x - Step 2: Convert to fraction form
155,769.48/214,961.58 = 84,149.28/x - Step 3: Cross multiply
155,769.48x = 214,961.58 × 84,149.28 - Step 4: Simplify right side
155,769.48x = 18,088,862,184.66 - Step 5: Solve for x
x = 18,088,862,184.66/155,769.48 - Step 6: Final answer
x = 116,125.84
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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.