Finding the Fourth Proportional to 108,515.84, 149,752.01 and 60,769.19
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Solution
The fourth proportional to 108,515.84, 149,752.01 and 60,769.19 is: 83,861.58
Step by Step Solution
- Step 1: Write the proportion equation
108,515.84 : 149,752.01 = 60,769.19 : x - Step 2: Convert to fraction form
108,515.84/149,752.01 = 60,769.19/x - Step 3: Cross multiply
108,515.84x = 149,752.01 × 60,769.19 - Step 4: Simplify right side
108,515.84x = 9,100,308,874.87 - Step 5: Solve for x
x = 9,100,308,874.87/108,515.84 - Step 6: Final answer
x = 83,861.58
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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.