Finding the Fourth Proportional to 155,696.12, 214,842.48 and 87,707.96
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Solution
The fourth proportional to 155,696.12, 214,842.48 and 87,707.96 is: 121,026.75
Step by Step Solution
- Step 1: Write the proportion equation
155,696.12 : 214,842.48 = 87,707.96 : x - Step 2: Convert to fraction form
155,696.12/214,842.48 = 87,707.96/x - Step 3: Cross multiply
155,696.12x = 214,842.48 × 87,707.96 - Step 4: Simplify right side
155,696.12x = 18,843,395,642.14 - Step 5: Solve for x
x = 18,843,395,642.14/155,696.12 - Step 6: Final answer
x = 121,026.75
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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.