Finding the Fourth Proportional to 137,921.04, 190,351.62 and 84,236.94
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Solution
The fourth proportional to 137,921.04, 190,351.62 and 84,236.94 is: 116,259.55
Step by Step Solution
- Step 1: Write the proportion equation
137,921.04 : 190,351.62 = 84,236.94 : x - Step 2: Convert to fraction form
137,921.04/190,351.62 = 84,236.94/x - Step 3: Cross multiply
137,921.04x = 190,351.62 × 84,236.94 - Step 4: Simplify right side
137,921.04x = 16,034,637,992.84 - Step 5: Solve for x
x = 16,034,637,992.84/137,921.04 - Step 6: Final answer
x = 116,259.55
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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.