Finding the Fourth Proportional to 145,882.26, 201,317.50 and 78,814.26
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Solution
The fourth proportional to 145,882.26, 201,317.50 and 78,814.26 is: 108,763.67
Step by Step Solution
- Step 1: Write the proportion equation
145,882.26 : 201,317.50 = 78,814.26 : x - Step 2: Convert to fraction form
145,882.26/201,317.50 = 78,814.26/x - Step 3: Cross multiply
145,882.26x = 201,317.50 × 78,814.26 - Step 4: Simplify right side
145,882.26x = 15,866,689,787.55 - Step 5: Solve for x
x = 15,866,689,787.55/145,882.26 - Step 6: Final answer
x = 108,763.67
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1.5x scale
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.