Finding the Fourth Proportional to 162,269.20, 243,495.44 and 87,387.76
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Solution
The fourth proportional to 162,269.20, 243,495.44 and 87,387.76 is: 131,130.99
Step by Step Solution
- Step 1: Write the proportion equation
162,269.20 : 243,495.44 = 87,387.76 : x - Step 2: Convert to fraction form
162,269.20/243,495.44 = 87,387.76/x - Step 3: Cross multiply
162,269.20x = 243,495.44 × 87,387.76 - Step 4: Simplify right side
162,269.20x = 21,278,521,071.81 - Step 5: Solve for x
x = 21,278,521,071.81/162,269.20 - Step 6: Final answer
x = 131,130.99
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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.