Finding the Fourth Proportional to 135,157.05, 202,669.29 and 79,011.36
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Solution
The fourth proportional to 135,157.05, 202,669.29 and 79,011.36 is: 118,478.29
Step by Step Solution
- Step 1: Write the proportion equation
135,157.05 : 202,669.29 = 79,011.36 : x - Step 2: Convert to fraction form
135,157.05/202,669.29 = 79,011.36/x - Step 3: Cross multiply
135,157.05x = 202,669.29 × 79,011.36 - Step 4: Simplify right side
135,157.05x = 16,013,176,233.13 - Step 5: Solve for x
x = 16,013,176,233.13/135,157.05 - Step 6: Final answer
x = 118,478.29
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.