Finding the Fourth Proportional to 159,021.93, 219,451.64 and 87,403.62
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Solution
The fourth proportional to 159,021.93, 219,451.64 and 87,403.62 is: 120,617.75
Step by Step Solution
- Step 1: Write the proportion equation
159,021.93 : 219,451.64 = 87,403.62 : x - Step 2: Convert to fraction form
159,021.93/219,451.64 = 87,403.62/x - Step 3: Cross multiply
159,021.93x = 219,451.64 × 87,403.62 - Step 4: Simplify right side
159,021.93x = 19,180,867,750.94 - Step 5: Solve for x
x = 19,180,867,750.94/159,021.93 - Step 6: Final answer
x = 120,617.75
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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.