Finding the Fourth Proportional to 147,163.09, 203,060.63 and 86,725.53
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Solution
The fourth proportional to 147,163.09, 203,060.63 and 86,725.53 is: 119,666.83
Step by Step Solution
- Step 1: Write the proportion equation
147,163.09 : 203,060.63 = 86,725.53 : x - Step 2: Convert to fraction form
147,163.09/203,060.63 = 86,725.53/x - Step 3: Cross multiply
147,163.09x = 203,060.63 × 86,725.53 - Step 4: Simplify right side
147,163.09x = 17,610,540,758.88 - Step 5: Solve for x
x = 17,610,540,758.88/147,163.09 - Step 6: Final answer
x = 119,666.83
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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.