Finding the Fourth Proportional to 125,111.99, 187,639.77 and 57,579.19
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Solution
The fourth proportional to 125,111.99, 187,639.77 and 57,579.19 is: 86,355.80
Step by Step Solution
- Step 1: Write the proportion equation
125,111.99 : 187,639.77 = 57,579.19 : x - Step 2: Convert to fraction form
125,111.99/187,639.77 = 57,579.19/x - Step 3: Cross multiply
125,111.99x = 187,639.77 × 57,579.19 - Step 4: Simplify right side
125,111.99x = 10,804,145,715.21 - Step 5: Solve for x
x = 10,804,145,715.21/125,111.99 - Step 6: Final answer
x = 86,355.80
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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.