Finding the Fourth Proportional to 100,296.68, 138,423.60 and 62,068.53
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Solution
The fourth proportional to 100,296.68, 138,423.60 and 62,068.53 is: 85,663.35
Step by Step Solution
- Step 1: Write the proportion equation
100,296.68 : 138,423.60 = 62,068.53 : x - Step 2: Convert to fraction form
100,296.68/138,423.60 = 62,068.53/x - Step 3: Cross multiply
100,296.68x = 138,423.60 × 62,068.53 - Step 4: Simplify right side
100,296.68x = 8,591,749,369.31 - Step 5: Solve for x
x = 8,591,749,369.31/100,296.68 - Step 6: Final answer
x = 85,663.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.