Finding the Fourth Proportional to 147,771.96, 203,935.68 and 84,109.77
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Solution
The fourth proportional to 147,771.96, 203,935.68 and 84,109.77 is: 116,077.39
Step by Step Solution
- Step 1: Write the proportion equation
147,771.96 : 203,935.68 = 84,109.77 : x - Step 2: Convert to fraction form
147,771.96/203,935.68 = 84,109.77/x - Step 3: Cross multiply
147,771.96x = 203,935.68 × 84,109.77 - Step 4: Simplify right side
147,771.96x = 17,152,983,139.59 - Step 5: Solve for x
x = 17,152,983,139.59/147,771.96 - Step 6: Final answer
x = 116,077.39
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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.