Finding the Fourth Proportional to 122,458.60, 183,461.10 and 69,711.40
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Solution
The fourth proportional to 122,458.60, 183,461.10 and 69,711.40 is: 104,437.99
Step by Step Solution
- Step 1: Write the proportion equation
122,458.60 : 183,461.10 = 69,711.40 : x - Step 2: Convert to fraction form
122,458.60/183,461.10 = 69,711.40/x - Step 3: Cross multiply
122,458.60x = 183,461.10 × 69,711.40 - Step 4: Simplify right side
122,458.60x = 12,789,330,126.54 - Step 5: Solve for x
x = 12,789,330,126.54/122,458.60 - Step 6: Final answer
x = 104,437.99
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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.