Finding the Fourth Proportional to 102,283.68, 141,195.12 and 68,769.12
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Solution
The fourth proportional to 102,283.68, 141,195.12 and 68,769.12 is: 94,930.73
Step by Step Solution
- Step 1: Write the proportion equation
102,283.68 : 141,195.12 = 68,769.12 : x - Step 2: Convert to fraction form
102,283.68/141,195.12 = 68,769.12/x - Step 3: Cross multiply
102,283.68x = 141,195.12 × 68,769.12 - Step 4: Simplify right side
102,283.68x = 9,709,864,150.69 - Step 5: Solve for x
x = 9,709,864,150.69/102,283.68 - Step 6: Final answer
x = 94,930.73
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1.5x scale
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.