Finding the Fourth Proportional to 145,889.03, 201,326.67 and 78,821.03
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Solution
The fourth proportional to 145,889.03, 201,326.67 and 78,821.03 is: 108,772.92
Step by Step Solution
- Step 1: Write the proportion equation
145,889.03 : 201,326.67 = 78,821.03 : x - Step 2: Convert to fraction form
145,889.03/201,326.67 = 78,821.03/x - Step 3: Cross multiply
145,889.03x = 201,326.67 × 78,821.03 - Step 4: Simplify right side
145,889.03x = 15,868,775,999.19 - Step 5: Solve for x
x = 15,868,775,999.19/145,889.03 - Step 6: Final answer
x = 108,772.92
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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.