Finding the Fourth Proportional to 107,371.98, 148,189.49 and 77,256.99
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Solution
The fourth proportional to 107,371.98, 148,189.49 and 77,256.99 is: 106,626.27
Step by Step Solution
- Step 1: Write the proportion equation
107,371.98 : 148,189.49 = 77,256.99 : x - Step 2: Convert to fraction form
107,371.98/148,189.49 = 77,256.99/x - Step 3: Cross multiply
107,371.98x = 148,189.49 × 77,256.99 - Step 4: Simplify right side
107,371.98x = 11,448,673,947.04 - Step 5: Solve for x
x = 11,448,673,947.04/107,371.98 - Step 6: Final answer
x = 106,626.27
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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.