Finding the Fourth Proportional to 80,617.81, 119,911.76 and 80,348.08
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Solution
The fourth proportional to 80,617.81, 119,911.76 and 80,348.08 is: 119,510.56
Step by Step Solution
- Step 1: Write the proportion equation
80,617.81 : 119,911.76 = 80,348.08 : x - Step 2: Convert to fraction form
80,617.81/119,911.76 = 80,348.08/x - Step 3: Cross multiply
80,617.81x = 119,911.76 × 80,348.08 - Step 4: Simplify right side
80,617.81x = 9,634,679,685.42 - Step 5: Solve for x
x = 9,634,679,685.42/80,617.81 - Step 6: Final answer
x = 119,510.56
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.