Finding the Fourth Proportional to 159,408.26, 219,980.73 and 87,794.94
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Solution
The fourth proportional to 159,408.26, 219,980.73 and 87,794.94 is: 121,155.55
Step by Step Solution
- Step 1: Write the proportion equation
159,408.26 : 219,980.73 = 87,794.94 : x - Step 2: Convert to fraction form
159,408.26/219,980.73 = 87,794.94/x - Step 3: Cross multiply
159,408.26x = 219,980.73 × 87,794.94 - Step 4: Simplify right side
159,408.26x = 19,313,195,320.74 - Step 5: Solve for x
x = 19,313,195,320.74/159,408.26 - Step 6: Final answer
x = 121,155.55
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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.