Finding the Fourth Proportional to 148,751.18, 205,274.53 and 84,218.75
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Solution
The fourth proportional to 148,751.18, 205,274.53 and 84,218.75 is: 116,220.69
Step by Step Solution
- Step 1: Write the proportion equation
148,751.18 : 205,274.53 = 84,218.75 : x - Step 2: Convert to fraction form
148,751.18/205,274.53 = 84,218.75/x - Step 3: Cross multiply
148,751.18x = 205,274.53 × 84,218.75 - Step 4: Simplify right side
148,751.18x = 17,287,964,705.03 - Step 5: Solve for x
x = 17,287,964,705.03/148,751.18 - Step 6: Final answer
x = 116,220.69
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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.