Finding the Fourth Proportional to 155,579.70, 214,701.51 and 87,583.44
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Solution
The fourth proportional to 155,579.70, 214,701.51 and 87,583.44 is: 120,866.01
Step by Step Solution
- Step 1: Write the proportion equation
155,579.70 : 214,701.51 = 87,583.44 : x - Step 2: Convert to fraction form
155,579.70/214,701.51 = 87,583.44/x - Step 3: Cross multiply
155,579.70x = 214,701.51 × 87,583.44 - Step 4: Simplify right side
155,579.70x = 18,804,296,818.99 - Step 5: Solve for x
x = 18,804,296,818.99/155,579.70 - Step 6: Final answer
x = 120,866.01
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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.