Finding the Fourth Proportional to 155,888.94, 215,126.90 and 84,268.98
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Solution
The fourth proportional to 155,888.94, 215,126.90 and 84,268.98 is: 116,291.28
Step by Step Solution
- Step 1: Write the proportion equation
155,888.94 : 215,126.90 = 84,268.98 : x - Step 2: Convert to fraction form
155,888.94/215,126.90 = 84,268.98/x - Step 3: Cross multiply
155,888.94x = 215,126.90 × 84,268.98 - Step 4: Simplify right side
155,888.94x = 18,128,524,012.22 - Step 5: Solve for x
x = 18,128,524,012.22/155,888.94 - Step 6: Final answer
x = 116,291.28
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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.