Finding the Fourth Proportional to 98,176.05, 135,440.17 and 61,855.45
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Solution
The fourth proportional to 98,176.05, 135,440.17 and 61,855.45 is: 85,333.56
Step by Step Solution
- Step 1: Write the proportion equation
98,176.05 : 135,440.17 = 61,855.45 : x - Step 2: Convert to fraction form
98,176.05/135,440.17 = 61,855.45/x - Step 3: Cross multiply
98,176.05x = 135,440.17 × 61,855.45 - Step 4: Simplify right side
98,176.05x = 8,377,712,170.19 - Step 5: Solve for x
x = 8,377,712,170.19/98,176.05 - Step 6: Final answer
x = 85,333.56
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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.