Finding the Fourth Proportional to 160,581.21, 221,594.70 and 87,983.74
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Solution
The fourth proportional to 160,581.21, 221,594.70 and 87,983.74 is: 121,413.52
Step by Step Solution
- Step 1: Write the proportion equation
160,581.21 : 221,594.70 = 87,983.74 : x - Step 2: Convert to fraction form
160,581.21/221,594.70 = 87,983.74/x - Step 3: Cross multiply
160,581.21x = 221,594.70 × 87,983.74 - Step 4: Simplify right side
160,581.21x = 19,496,730,470.18 - Step 5: Solve for x
x = 19,496,730,470.18/160,581.21 - Step 6: Final answer
x = 121,413.52
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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.