Finding the Fourth Proportional to 155,351.05, 214,382.42 and 87,368.00
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Solution
The fourth proportional to 155,351.05, 214,382.42 and 87,368.00 is: 120,566.70
Step by Step Solution
- Step 1: Write the proportion equation
155,351.05 : 214,382.42 = 87,368.00 : x - Step 2: Convert to fraction form
155,351.05/214,382.42 = 87,368.00/x - Step 3: Cross multiply
155,351.05x = 214,382.42 × 87,368.00 - Step 4: Simplify right side
155,351.05x = 18,730,163,369.68 - Step 5: Solve for x
x = 18,730,163,369.68/155,351.05 - Step 6: Final answer
x = 120,566.70
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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.