Finding the Fourth Proportional to 84,516.98, 126,775.46 and 68,703.14
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Solution
The fourth proportional to 84,516.98, 126,775.46 and 68,703.14 is: 103,054.70
Step by Step Solution
- Step 1: Write the proportion equation
84,516.98 : 126,775.46 = 68,703.14 : x - Step 2: Convert to fraction form
84,516.98/126,775.46 = 68,703.14/x - Step 3: Cross multiply
84,516.98x = 126,775.46 × 68,703.14 - Step 4: Simplify right side
84,516.98x = 8,709,872,176.94 - Step 5: Solve for x
x = 8,709,872,176.94/84,516.98 - Step 6: Final answer
x = 103,054.70
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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.