Finding the Fourth Proportional to 158,844.68, 219,206.25 and 86,247.68
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Solution
The fourth proportional to 158,844.68, 219,206.25 and 86,247.68 is: 119,022.12
Step by Step Solution
- Step 1: Write the proportion equation
158,844.68 : 219,206.25 = 86,247.68 : x - Step 2: Convert to fraction form
158,844.68/219,206.25 = 86,247.68/x - Step 3: Cross multiply
158,844.68x = 219,206.25 × 86,247.68 - Step 4: Simplify right side
158,844.68x = 18,906,029,407.97 - Step 5: Solve for x
x = 18,906,029,407.97/158,844.68 - Step 6: Final answer
x = 119,022.12
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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.