Finding the Fourth Proportional to 140,681.75, 194,122.67 and 80,248.79
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Solution
The fourth proportional to 140,681.75, 194,122.67 and 80,248.79 is: 110,732.98
Step by Step Solution
- Step 1: Write the proportion equation
140,681.75 : 194,122.67 = 80,248.79 : x - Step 2: Convert to fraction form
140,681.75/194,122.67 = 80,248.79/x - Step 3: Cross multiply
140,681.75x = 194,122.67 × 80,248.79 - Step 4: Simplify right side
140,681.75x = 15,578,109,463.13 - Step 5: Solve for x
x = 15,578,109,463.13/140,681.75 - Step 6: Final answer
x = 110,732.98
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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.