Finding the Fourth Proportional to 168,359.21, 232,337.07 and 91,878.91
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Solution
The fourth proportional to 168,359.21, 232,337.07 and 91,878.91 is: 126,793.64
Step by Step Solution
- Step 1: Write the proportion equation
168,359.21 : 232,337.07 = 91,878.91 : x - Step 2: Convert to fraction form
168,359.21/232,337.07 = 91,878.91/x - Step 3: Cross multiply
168,359.21x = 232,337.07 × 91,878.91 - Step 4: Simplify right side
168,359.21x = 21,346,876,744.19 - Step 5: Solve for x
x = 21,346,876,744.19/168,359.21 - Step 6: Final answer
x = 126,793.64
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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.