Finding the Fourth Proportional to 171,748.68, 236,904.12 and 124,072.08
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Solution
The fourth proportional to 171,748.68, 236,904.12 and 124,072.08 is: 171,140.69
Step by Step Solution
- Step 1: Write the proportion equation
171,748.68 : 236,904.12 = 124,072.08 : x - Step 2: Convert to fraction form
171,748.68/236,904.12 = 124,072.08/x - Step 3: Cross multiply
171,748.68x = 236,904.12 × 124,072.08 - Step 4: Simplify right side
171,748.68x = 29,393,186,928.97 - Step 5: Solve for x
x = 29,393,186,928.97/171,748.68 - Step 6: Final answer
x = 171,140.69
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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.