Finding the Fourth Proportional to 168,958.19, 232,779.94 and 138,695.57
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Solution
The fourth proportional to 168,958.19, 232,779.94 and 138,695.57 is: 191,086.02
Step by Step Solution
- Step 1: Write the proportion equation
168,958.19 : 232,779.94 = 138,695.57 : x - Step 2: Convert to fraction form
168,958.19/232,779.94 = 138,695.57/x - Step 3: Cross multiply
168,958.19x = 232,779.94 × 138,695.57 - Step 4: Simplify right side
168,958.19x = 32,285,546,698.08 - Step 5: Solve for x
x = 32,285,546,698.08/168,958.19 - Step 6: Final answer
x = 191,086.02
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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.