Finding the Fourth Proportional to 158,615.24, 218,892.44 and 86,995.09
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Solution
The fourth proportional to 158,615.24, 218,892.44 and 86,995.09 is: 120,055.08
Step by Step Solution
- Step 1: Write the proportion equation
158,615.24 : 218,892.44 = 86,995.09 : x - Step 2: Convert to fraction form
158,615.24/218,892.44 = 86,995.09/x - Step 3: Cross multiply
158,615.24x = 218,892.44 × 86,995.09 - Step 4: Simplify right side
158,615.24x = 19,042,565,988.68 - Step 5: Solve for x
x = 19,042,565,988.68/158,615.24 - Step 6: Final answer
x = 120,055.08
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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.