Finding the Fourth Proportional to 147,242.36, 202,990.38 and 99,419.96
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Solution
The fourth proportional to 147,242.36, 202,990.38 and 99,419.96 is: 137,061.75
Step by Step Solution
- Step 1: Write the proportion equation
147,242.36 : 202,990.38 = 99,419.96 : x - Step 2: Convert to fraction form
147,242.36/202,990.38 = 99,419.96/x - Step 3: Cross multiply
147,242.36x = 202,990.38 × 99,419.96 - Step 4: Simplify right side
147,242.36x = 20,181,295,459.98 - Step 5: Solve for x
x = 20,181,295,459.98/147,242.36 - Step 6: Final answer
x = 137,061.75
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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.