Finding the Fourth Proportional to 107,868.71, 148,855.88 and 61,926.99
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Solution
The fourth proportional to 107,868.71, 148,855.88 and 61,926.99 is: 85,457.56
Step by Step Solution
- Step 1: Write the proportion equation
107,868.71 : 148,855.88 = 61,926.99 : x - Step 2: Convert to fraction form
107,868.71/148,855.88 = 61,926.99/x - Step 3: Cross multiply
107,868.71x = 148,855.88 × 61,926.99 - Step 4: Simplify right side
107,868.71x = 9,218,196,282.57 - Step 5: Solve for x
x = 9,218,196,282.57/107,868.71 - Step 6: Final answer
x = 85,457.56
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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.