Finding the Fourth Proportional to 156,462.07, 215,916.48 and 84,841.99
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Solution
The fourth proportional to 156,462.07, 215,916.48 and 84,841.99 is: 117,081.31
Step by Step Solution
- Step 1: Write the proportion equation
156,462.07 : 215,916.48 = 84,841.99 : x - Step 2: Convert to fraction form
156,462.07/215,916.48 = 84,841.99/x - Step 3: Cross multiply
156,462.07x = 215,916.48 × 84,841.99 - Step 4: Simplify right side
156,462.07x = 18,318,783,837.00 - Step 5: Solve for x
x = 18,318,783,837.00/156,462.07 - Step 6: Final answer
x = 117,081.31
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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.