Finding the Fourth Proportional to 155,799.62, 214,751.58 and 121,748.92
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Solution
The fourth proportional to 155,799.62, 214,751.58 and 121,748.92 is: 167,816.67
Step by Step Solution
- Step 1: Write the proportion equation
155,799.62 : 214,751.58 = 121,748.92 : x - Step 2: Convert to fraction form
155,799.62/214,751.58 = 121,748.92/x - Step 3: Cross multiply
155,799.62x = 214,751.58 × 121,748.92 - Step 4: Simplify right side
155,799.62x = 26,145,772,933.29 - Step 5: Solve for x
x = 26,145,772,933.29/155,799.62 - Step 6: Final answer
x = 167,816.67
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1.5x scale
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.