Finding the Fourth Proportional to 103,501.40, 155,252.10 and 102,845.30
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Solution
The fourth proportional to 103,501.40, 155,252.10 and 102,845.30 is: 154,267.95
Step by Step Solution
- Step 1: Write the proportion equation
103,501.40 : 155,252.10 = 102,845.30 : x - Step 2: Convert to fraction form
103,501.40/155,252.10 = 102,845.30/x - Step 3: Cross multiply
103,501.40x = 155,252.10 × 102,845.30 - Step 4: Simplify right side
103,501.40x = 15,966,948,800.13 - Step 5: Solve for x
x = 15,966,948,800.13/103,501.40 - Step 6: Final answer
x = 154,267.95
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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.