Finding the Fourth Proportional to 156,164.55, 215,504.51 and 84,543.99
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Solution
The fourth proportional to 156,164.55, 215,504.51 and 84,543.99 is: 116,669.31
Step by Step Solution
- Step 1: Write the proportion equation
156,164.55 : 215,504.51 = 84,543.99 : x - Step 2: Convert to fraction form
156,164.55/215,504.51 = 84,543.99/x - Step 3: Cross multiply
156,164.55x = 215,504.51 × 84,543.99 - Step 4: Simplify right side
156,164.55x = 18,219,610,715.68 - Step 5: Solve for x
x = 18,219,610,715.68/156,164.55 - Step 6: Final answer
x = 116,669.31
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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.