Finding the Fourth Proportional to 106,643.88, 147,168.09 and 58,896.99
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Solution
The fourth proportional to 106,643.88, 147,168.09 and 58,896.99 is: 81,277.59
Step by Step Solution
- Step 1: Write the proportion equation
106,643.88 : 147,168.09 = 58,896.99 : x - Step 2: Convert to fraction form
106,643.88/147,168.09 = 58,896.99/x - Step 3: Cross multiply
106,643.88x = 147,168.09 × 58,896.99 - Step 4: Simplify right side
106,643.88x = 8,667,757,525.05 - Step 5: Solve for x
x = 8,667,757,525.05/106,643.88 - Step 6: Final answer
x = 81,277.59
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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.