Finding the Fourth Proportional to 115,316.96, 159,133.80 and 67,602.09
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Solution
The fourth proportional to 115,316.96, 159,133.80 and 67,602.09 is: 93,288.77
Step by Step Solution
- Step 1: Write the proportion equation
115,316.96 : 159,133.80 = 67,602.09 : x - Step 2: Convert to fraction form
115,316.96/159,133.80 = 67,602.09/x - Step 3: Cross multiply
115,316.96x = 159,133.80 × 67,602.09 - Step 4: Simplify right side
115,316.96x = 10,757,777,131.63 - Step 5: Solve for x
x = 10,757,777,131.63/115,316.96 - Step 6: Final answer
x = 93,288.77
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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.