Finding the Fourth Proportional to 159,584.11, 220,235.93 and 87,963.96
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Solution
The fourth proportional to 159,584.11, 220,235.93 and 87,963.96 is: 121,395.70
Step by Step Solution
- Step 1: Write the proportion equation
159,584.11 : 220,235.93 = 87,963.96 : x - Step 2: Convert to fraction form
159,584.11/220,235.93 = 87,963.96/x - Step 3: Cross multiply
159,584.11x = 220,235.93 × 87,963.96 - Step 4: Simplify right side
159,584.11x = 19,372,824,537.08 - Step 5: Solve for x
x = 19,372,824,537.08/159,584.11 - Step 6: Final answer
x = 121,395.70
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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.