Finding the Fourth Proportional to 123,930.09, 171,022.95 and 70,214.99
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Solution
The fourth proportional to 123,930.09, 171,022.95 and 70,214.99 is: 96,896.35
Step by Step Solution
- Step 1: Write the proportion equation
123,930.09 : 171,022.95 = 70,214.99 : x - Step 2: Convert to fraction form
123,930.09/171,022.95 = 70,214.99/x - Step 3: Cross multiply
123,930.09x = 171,022.95 × 70,214.99 - Step 4: Simplify right side
123,930.09x = 12,008,373,868.91 - Step 5: Solve for x
x = 12,008,373,868.91/123,930.09 - Step 6: Final answer
x = 96,896.35
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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.