Finding the Fourth Proportional to 107,115.19, 159,715.11 and 104,172.55
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Solution
The fourth proportional to 107,115.19, 159,715.11 and 104,172.55 is: 155,327.46
Step by Step Solution
- Step 1: Write the proportion equation
107,115.19 : 159,715.11 = 104,172.55 : x - Step 2: Convert to fraction form
107,115.19/159,715.11 = 104,172.55/x - Step 3: Cross multiply
107,115.19x = 159,715.11 × 104,172.55 - Step 4: Simplify right side
107,115.19x = 16,637,930,282.23 - Step 5: Solve for x
x = 16,637,930,282.23/107,115.19 - Step 6: Final answer
x = 155,327.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.