Finding the Fourth Proportional to 157,213.41, 217,009.18 and 93,549.84
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Solution
The fourth proportional to 157,213.41, 217,009.18 and 93,549.84 is: 129,131.31
Step by Step Solution
- Step 1: Write the proportion equation
157,213.41 : 217,009.18 = 93,549.84 : x - Step 2: Convert to fraction form
157,213.41/217,009.18 = 93,549.84/x - Step 3: Cross multiply
157,213.41x = 217,009.18 × 93,549.84 - Step 4: Simplify right side
157,213.41x = 20,301,172,844.47 - Step 5: Solve for x
x = 20,301,172,844.47/157,213.41 - Step 6: Final answer
x = 129,131.31
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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.