Finding the Fourth Proportional to 129,398.80, 192,762.74 and 125,482.96
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Solution
The fourth proportional to 129,398.80, 192,762.74 and 125,482.96 is: 186,929.39
Step by Step Solution
- Step 1: Write the proportion equation
129,398.80 : 192,762.74 = 125,482.96 : x - Step 2: Convert to fraction form
129,398.80/192,762.74 = 125,482.96/x - Step 3: Cross multiply
129,398.80x = 192,762.74 × 125,482.96 - Step 4: Simplify right side
129,398.80x = 24,188,439,192.91 - Step 5: Solve for x
x = 24,188,439,192.91/129,398.80 - Step 6: Final answer
x = 186,929.39
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1.5x scale
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.