Finding the Fourth Proportional to 159,203.17, 238,734.71 and 84,305.85
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Solution
The fourth proportional to 159,203.17, 238,734.71 and 84,305.85 is: 126,421.68
Step by Step Solution
- Step 1: Write the proportion equation
159,203.17 : 238,734.71 = 84,305.85 : x - Step 2: Convert to fraction form
159,203.17/238,734.71 = 84,305.85/x - Step 3: Cross multiply
159,203.17x = 238,734.71 × 84,305.85 - Step 4: Simplify right side
159,203.17x = 20,126,731,650.42 - Step 5: Solve for x
x = 20,126,731,650.42/159,203.17 - Step 6: Final answer
x = 126,421.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.