Finding the Fourth Proportional to 159,305.99, 219,840.53 and 87,684.47
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Solution
The fourth proportional to 159,305.99, 219,840.53 and 87,684.47 is: 121,003.61
Step by Step Solution
- Step 1: Write the proportion equation
159,305.99 : 219,840.53 = 87,684.47 : x - Step 2: Convert to fraction form
159,305.99/219,840.53 = 87,684.47/x - Step 3: Cross multiply
159,305.99x = 219,840.53 × 87,684.47 - Step 4: Simplify right side
159,305.99x = 19,276,600,576.78 - Step 5: Solve for x
x = 19,276,600,576.78/159,305.99 - Step 6: Final answer
x = 121,003.61
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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.