Finding the Fourth Proportional to 188,407.47, 259,823.79 and 123,762.99
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Solution
The fourth proportional to 188,407.47, 259,823.79 and 123,762.99 is: 170,675.66
Step by Step Solution
- Step 1: Write the proportion equation
188,407.47 : 259,823.79 = 123,762.99 : x - Step 2: Convert to fraction form
188,407.47/259,823.79 = 123,762.99/x - Step 3: Cross multiply
188,407.47x = 259,823.79 × 123,762.99 - Step 4: Simplify right side
188,407.47x = 32,156,569,123.53 - Step 5: Solve for x
x = 32,156,569,123.53/188,407.47 - Step 6: Final answer
x = 170,675.66
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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.