Finding the Fourth Proportional to 159,054.63, 219,495.63 and 87,435.09
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Solution
The fourth proportional to 159,054.63, 219,495.63 and 87,435.09 is: 120,660.56
Step by Step Solution
- Step 1: Write the proportion equation
159,054.63 : 219,495.63 = 87,435.09 : x - Step 2: Convert to fraction form
159,054.63/219,495.63 = 87,435.09/x - Step 3: Cross multiply
159,054.63x = 219,495.63 × 87,435.09 - Step 4: Simplify right side
159,054.63x = 19,191,620,163.66 - Step 5: Solve for x
x = 19,191,620,163.66/159,054.63 - Step 6: Final answer
x = 120,660.56
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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.