Finding the Fourth Proportional to 177,678.36, 245,122.88 and 123,994.53
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Solution
The fourth proportional to 177,678.36, 245,122.88 and 123,994.53 is: 171,061.32
Step by Step Solution
- Step 1: Write the proportion equation
177,678.36 : 245,122.88 = 123,994.53 : x - Step 2: Convert to fraction form
177,678.36/245,122.88 = 123,994.53/x - Step 3: Cross multiply
177,678.36x = 245,122.88 × 123,994.53 - Step 4: Simplify right side
177,678.36x = 30,393,895,677.87 - Step 5: Solve for x
x = 30,393,895,677.87/177,678.36 - Step 6: Final answer
x = 171,061.32
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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.