Finding the Fourth Proportional to 140,717.65, 210,811.62 and 69,556.99
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Solution
The fourth proportional to 140,717.65, 210,811.62 and 69,556.99 is: 104,204.57
Step by Step Solution
- Step 1: Write the proportion equation
140,717.65 : 210,811.62 = 69,556.99 : x - Step 2: Convert to fraction form
140,717.65/210,811.62 = 69,556.99/x - Step 3: Cross multiply
140,717.65x = 210,811.62 × 69,556.99 - Step 4: Simplify right side
140,717.65x = 14,663,422,074.95 - Step 5: Solve for x
x = 14,663,422,074.95/140,717.65 - Step 6: Final answer
x = 104,204.57
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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.