Finding the Fourth Proportional to 135,315.81, 202,998.65 and 56,436.80
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Solution
The fourth proportional to 135,315.81, 202,998.65 and 56,436.80 is: 84,665.59
Step by Step Solution
- Step 1: Write the proportion equation
135,315.81 : 202,998.65 = 56,436.80 : x - Step 2: Convert to fraction form
135,315.81/202,998.65 = 56,436.80/x - Step 3: Cross multiply
135,315.81x = 202,998.65 × 56,436.80 - Step 4: Simplify right side
135,315.81x = 11,456,592,913.14 - Step 5: Solve for x
x = 11,456,592,913.14/135,315.81 - Step 6: Final answer
x = 84,665.59
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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.