Finding the Fourth Proportional to 153,707.22, 212,110.74 and 84,799.44
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Solution
The fourth proportional to 153,707.22, 212,110.74 and 84,799.44 is: 117,020.35
Step by Step Solution
- Step 1: Write the proportion equation
153,707.22 : 212,110.74 = 84,799.44 : x - Step 2: Convert to fraction form
153,707.22/212,110.74 = 84,799.44/x - Step 3: Cross multiply
153,707.22x = 212,110.74 × 84,799.44 - Step 4: Simplify right side
153,707.22x = 17,986,871,969.99 - Step 5: Solve for x
x = 17,986,871,969.99/153,707.22 - Step 6: Final answer
x = 117,020.35
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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.