Finding the Fourth Proportional to 155,364.69, 214,397.10 and 91,722.99
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Solution
The fourth proportional to 155,364.69, 214,397.10 and 91,722.99 is: 126,574.08
Step by Step Solution
- Step 1: Write the proportion equation
155,364.69 : 214,397.10 = 91,722.99 : x - Step 2: Convert to fraction form
155,364.69/214,397.10 = 91,722.99/x - Step 3: Cross multiply
155,364.69x = 214,397.10 × 91,722.99 - Step 4: Simplify right side
155,364.69x = 19,665,143,059.33 - Step 5: Solve for x
x = 19,665,143,059.33/155,364.69 - Step 6: Final answer
x = 126,574.08
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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.