Finding the Fourth Proportional to 167,031.36, 230,502.96 and 91,579.68
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Solution
The fourth proportional to 167,031.36, 230,502.96 and 91,579.68 is: 126,379.78
Step by Step Solution
- Step 1: Write the proportion equation
167,031.36 : 230,502.96 = 91,579.68 : x - Step 2: Convert to fraction form
167,031.36/230,502.96 = 91,579.68/x - Step 3: Cross multiply
167,031.36x = 230,502.96 × 91,579.68 - Step 4: Simplify right side
167,031.36x = 21,109,387,315.85 - Step 5: Solve for x
x = 21,109,387,315.85/167,031.36 - Step 6: Final answer
x = 126,379.78
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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.