Finding the Fourth Proportional to 155,539.91, 214,642.69 and 87,556.67
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Solution
The fourth proportional to 155,539.91, 214,642.69 and 87,556.67 is: 120,826.86
Step by Step Solution
- Step 1: Write the proportion equation
155,539.91 : 214,642.69 = 87,556.67 : x - Step 2: Convert to fraction form
155,539.91/214,642.69 = 87,556.67/x - Step 3: Cross multiply
155,539.91x = 214,642.69 × 87,556.67 - Step 4: Simplify right side
155,539.91x = 18,793,399,176.24 - Step 5: Solve for x
x = 18,793,399,176.24/155,539.91 - Step 6: Final answer
x = 120,826.86
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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.