Finding the Fourth Proportional to 103,013.68, 154,256.26 and 71,378.80
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Solution
The fourth proportional to 103,013.68, 154,256.26 and 71,378.80 is: 106,885.09
Step by Step Solution
- Step 1: Write the proportion equation
103,013.68 : 154,256.26 = 71,378.80 : x - Step 2: Convert to fraction form
103,013.68/154,256.26 = 71,378.80/x - Step 3: Cross multiply
103,013.68x = 154,256.26 × 71,378.80 - Step 4: Simplify right side
103,013.68x = 11,010,626,731.29 - Step 5: Solve for x
x = 11,010,626,731.29/103,013.68 - Step 6: Final answer
x = 106,885.09
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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.