Finding the Fourth Proportional to 147,342.69, 203,419.08 and 99,666.09
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Solution
The fourth proportional to 147,342.69, 203,419.08 and 99,666.09 is: 137,597.49
Step by Step Solution
- Step 1: Write the proportion equation
147,342.69 : 203,419.08 = 99,666.09 : x - Step 2: Convert to fraction form
147,342.69/203,419.08 = 99,666.09/x - Step 3: Cross multiply
147,342.69x = 203,419.08 × 99,666.09 - Step 4: Simplify right side
147,342.69x = 20,273,984,335.00 - Step 5: Solve for x
x = 20,273,984,335.00/147,342.69 - Step 6: Final answer
x = 137,597.49
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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.