Finding the Fourth Proportional to 145,907.30, 201,346.84 and 81,373.03
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Solution
The fourth proportional to 145,907.30, 201,346.84 and 81,373.03 is: 112,291.86
Step by Step Solution
- Step 1: Write the proportion equation
145,907.30 : 201,346.84 = 81,373.03 : x - Step 2: Convert to fraction form
145,907.30/201,346.84 = 81,373.03/x - Step 3: Cross multiply
145,907.30x = 201,346.84 × 81,373.03 - Step 4: Simplify right side
145,907.30x = 16,384,202,387.50 - Step 5: Solve for x
x = 16,384,202,387.50/145,907.30 - Step 6: Final answer
x = 112,291.86
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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.