Finding the Fourth Proportional to 170,986.95, 236,021.04 and 117,449.19
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Solution
The fourth proportional to 170,986.95, 236,021.04 and 117,449.19 is: 162,120.44
Step by Step Solution
- Step 1: Write the proportion equation
170,986.95 : 236,021.04 = 117,449.19 : x - Step 2: Convert to fraction form
170,986.95/236,021.04 = 117,449.19/x - Step 3: Cross multiply
170,986.95x = 236,021.04 × 117,449.19 - Step 4: Simplify right side
170,986.95x = 27,720,479,970.96 - Step 5: Solve for x
x = 27,720,479,970.96/170,986.95 - Step 6: Final answer
x = 162,120.44
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1.5x scale
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.