Finding the Fourth Proportional to 142,913.70, 214,378.92 and 48,135.96
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Solution
The fourth proportional to 142,913.70, 214,378.92 and 48,135.96 is: 72,206.76
Step by Step Solution
- Step 1: Write the proportion equation
142,913.70 : 214,378.92 = 48,135.96 : x - Step 2: Convert to fraction form
142,913.70/214,378.92 = 48,135.96/x - Step 3: Cross multiply
142,913.70x = 214,378.92 × 48,135.96 - Step 4: Simplify right side
142,913.70x = 10,319,335,117.96 - Step 5: Solve for x
x = 10,319,335,117.96/142,913.70 - Step 6: Final answer
x = 72,206.76
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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.