Finding the Fourth Proportional to 146,413.30, 219,619.95 and 87,315.70
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Solution
The fourth proportional to 146,413.30, 219,619.95 and 87,315.70 is: 130,973.55
Step by Step Solution
- Step 1: Write the proportion equation
146,413.30 : 219,619.95 = 87,315.70 : x - Step 2: Convert to fraction form
146,413.30/219,619.95 = 87,315.70/x - Step 3: Cross multiply
146,413.30x = 219,619.95 × 87,315.70 - Step 4: Simplify right side
146,413.30x = 19,176,269,668.22 - Step 5: Solve for x
x = 19,176,269,668.22/146,413.30 - Step 6: Final answer
x = 130,973.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.