Finding the Fourth Proportional to 156,425.29, 215,864.09 and 88,441.09
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Solution
The fourth proportional to 156,425.29, 215,864.09 and 88,441.09 is: 122,047.11
Step by Step Solution
- Step 1: Write the proportion equation
156,425.29 : 215,864.09 = 88,441.09 : x - Step 2: Convert to fraction form
156,425.29/215,864.09 = 88,441.09/x - Step 3: Cross multiply
156,425.29x = 215,864.09 × 88,441.09 - Step 4: Simplify right side
156,425.29x = 19,091,254,969.25 - Step 5: Solve for x
x = 19,091,254,969.25/156,425.29 - Step 6: Final answer
x = 122,047.11
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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.