Finding the Fourth Proportional to 130,396.80, 195,343.68 and 77,848.32
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Solution
The fourth proportional to 130,396.80, 195,343.68 and 77,848.32 is: 116,622.32
Step by Step Solution
- Step 1: Write the proportion equation
130,396.80 : 195,343.68 = 77,848.32 : x - Step 2: Convert to fraction form
130,396.80/195,343.68 = 77,848.32/x - Step 3: Cross multiply
130,396.80x = 195,343.68 × 77,848.32 - Step 4: Simplify right side
130,396.80x = 15,207,177,310.62 - Step 5: Solve for x
x = 15,207,177,310.62/130,396.80 - Step 6: Final answer
x = 116,622.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.