Finding the Fourth Proportional to 134,575.20, 201,862.80 and 99,145.80
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Solution
The fourth proportional to 134,575.20, 201,862.80 and 99,145.80 is: 148,718.70
Step by Step Solution
- Step 1: Write the proportion equation
134,575.20 : 201,862.80 = 99,145.80 : x - Step 2: Convert to fraction form
134,575.20/201,862.80 = 99,145.80/x - Step 3: Cross multiply
134,575.20x = 201,862.80 × 99,145.80 - Step 4: Simplify right side
134,575.20x = 20,013,848,796.24 - Step 5: Solve for x
x = 20,013,848,796.24/134,575.20 - Step 6: Final answer
x = 148,718.70
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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.