Finding the Fourth Proportional to 160,013.34, 220,821.21 and 88,389.09
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Solution
The fourth proportional to 160,013.34, 220,821.21 and 88,389.09 is: 121,978.49
Step by Step Solution
- Step 1: Write the proportion equation
160,013.34 : 220,821.21 = 88,389.09 : x - Step 2: Convert to fraction form
160,013.34/220,821.21 = 88,389.09/x - Step 3: Cross multiply
160,013.34x = 220,821.21 × 88,389.09 - Step 4: Simplify right side
160,013.34x = 19,518,185,804.60 - Step 5: Solve for x
x = 19,518,185,804.60/160,013.34 - Step 6: Final answer
x = 121,978.49
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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.