Finding the Fourth Proportional to 158,248.94, 218,388.69 and 86,628.96
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Solution
The fourth proportional to 158,248.94, 218,388.69 and 86,628.96 is: 119,550.79
Step by Step Solution
- Step 1: Write the proportion equation
158,248.94 : 218,388.69 = 86,628.96 : x - Step 2: Convert to fraction form
158,248.94/218,388.69 = 86,628.96/x - Step 3: Cross multiply
158,248.94x = 218,388.69 × 86,628.96 - Step 4: Simplify right side
158,248.94x = 18,918,785,090.46 - Step 5: Solve for x
x = 18,918,785,090.46/158,248.94 - Step 6: Final answer
x = 119,550.79
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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.