Finding the Fourth Proportional to 102,809.70, 154,214.55 and 61,337.70
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Solution
The fourth proportional to 102,809.70, 154,214.55 and 61,337.70 is: 92,006.55
Step by Step Solution
- Step 1: Write the proportion equation
102,809.70 : 154,214.55 = 61,337.70 : x - Step 2: Convert to fraction form
102,809.70/154,214.55 = 61,337.70/x - Step 3: Cross multiply
102,809.70x = 154,214.55 × 61,337.70 - Step 4: Simplify right side
102,809.70x = 9,459,165,803.54 - Step 5: Solve for x
x = 9,459,165,803.54/102,809.70 - Step 6: Final answer
x = 92,006.55
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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.