Finding the Fourth Proportional to 168,423.70, 252,670.65 and 56,138.80
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Solution
The fourth proportional to 168,423.70, 252,670.65 and 56,138.80 is: 84,219.90
Step by Step Solution
- Step 1: Write the proportion equation
168,423.70 : 252,670.65 = 56,138.80 : x - Step 2: Convert to fraction form
168,423.70/252,670.65 = 56,138.80/x - Step 3: Cross multiply
168,423.70x = 252,670.65 × 56,138.80 - Step 4: Simplify right side
168,423.70x = 14,184,627,086.22 - Step 5: Solve for x
x = 14,184,627,086.22/168,423.70 - Step 6: Final answer
x = 84,219.90
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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.