Finding the Fourth Proportional to 141,853.30, 212,765.55 and 48,357.70
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Solution
The fourth proportional to 141,853.30, 212,765.55 and 48,357.70 is: 72,531.64
Step by Step Solution
- Step 1: Write the proportion equation
141,853.30 : 212,765.55 = 48,357.70 : x - Step 2: Convert to fraction form
141,853.30/212,765.55 = 48,357.70/x - Step 3: Cross multiply
141,853.30x = 212,765.55 × 48,357.70 - Step 4: Simplify right side
141,853.30x = 10,288,852,637.24 - Step 5: Solve for x
x = 10,288,852,637.24/141,853.30 - Step 6: Final answer
x = 72,531.64
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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.