Finding the Fourth Proportional to 192,805.92, 266,077.80 and 107,920.80
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Solution
The fourth proportional to 192,805.92, 266,077.80 and 107,920.80 is: 148,933.86
Step by Step Solution
- Step 1: Write the proportion equation
192,805.92 : 266,077.80 = 107,920.80 : x - Step 2: Convert to fraction form
192,805.92/266,077.80 = 107,920.80/x - Step 3: Cross multiply
192,805.92x = 266,077.80 × 107,920.80 - Step 4: Simplify right side
192,805.92x = 28,715,329,038.24 - Step 5: Solve for x
x = 28,715,329,038.24/192,805.92 - Step 6: Final answer
x = 148,933.86
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1.5x scale
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.