Finding the Fourth Proportional to 156,202.19, 215,558.70 and 84,581.99
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Solution
The fourth proportional to 156,202.19, 215,558.70 and 84,581.99 is: 116,722.97
Step by Step Solution
- Step 1: Write the proportion equation
156,202.19 : 215,558.70 = 84,581.99 : x - Step 2: Convert to fraction form
156,202.19/215,558.70 = 84,581.99/x - Step 3: Cross multiply
156,202.19x = 215,558.70 × 84,581.99 - Step 4: Simplify right side
156,202.19x = 18,232,382,730.02 - Step 5: Solve for x
x = 18,232,382,730.02/156,202.19 - Step 6: Final answer
x = 116,722.97
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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.