Finding the Fourth Proportional to 155,992.05, 215,269.05 and 84,372.08
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Solution
The fourth proportional to 155,992.05, 215,269.05 and 84,372.08 is: 116,433.48
Step by Step Solution
- Step 1: Write the proportion equation
155,992.05 : 215,269.05 = 84,372.08 : x - Step 2: Convert to fraction form
155,992.05/215,269.05 = 84,372.08/x - Step 3: Cross multiply
155,992.05x = 215,269.05 × 84,372.08 - Step 4: Simplify right side
155,992.05x = 18,162,697,025.40 - Step 5: Solve for x
x = 18,162,697,025.40/155,992.05 - Step 6: Final answer
x = 116,433.48
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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.