Finding the Fourth Proportional to 141,554.08, 212,177.94 and 71,438.80
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Solution
The fourth proportional to 141,554.08, 212,177.94 and 71,438.80 is: 107,080.89
Step by Step Solution
- Step 1: Write the proportion equation
141,554.08 : 212,177.94 = 71,438.80 : x - Step 2: Convert to fraction form
141,554.08/212,177.94 = 71,438.80/x - Step 3: Cross multiply
141,554.08x = 212,177.94 × 71,438.80 - Step 4: Simplify right side
141,554.08x = 15,157,737,420.07 - Step 5: Solve for x
x = 15,157,737,420.07/141,554.08 - Step 6: Final answer
x = 107,080.89
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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.