Finding the Fourth Proportional to 158,057.64, 218,116.49 and 86,437.44
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Solution
The fourth proportional to 158,057.64, 218,116.49 and 86,437.44 is: 119,281.99
Step by Step Solution
- Step 1: Write the proportion equation
158,057.64 : 218,116.49 = 86,437.44 : x - Step 2: Convert to fraction form
158,057.64/218,116.49 = 86,437.44/x - Step 3: Cross multiply
158,057.64x = 218,116.49 × 86,437.44 - Step 4: Simplify right side
158,057.64x = 18,853,430,585.20 - Step 5: Solve for x
x = 18,853,430,585.20/158,057.64 - Step 6: Final answer
x = 119,281.99
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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.