Finding the Fourth Proportional to 124,458.75, 171,766.04 and 76,710.87
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Solution
The fourth proportional to 124,458.75, 171,766.04 and 76,710.87 is: 105,868.99
Step by Step Solution
- Step 1: Write the proportion equation
124,458.75 : 171,766.04 = 76,710.87 : x - Step 2: Convert to fraction form
124,458.75/171,766.04 = 76,710.87/x - Step 3: Cross multiply
124,458.75x = 171,766.04 × 76,710.87 - Step 4: Simplify right side
124,458.75x = 13,176,321,981.30 - Step 5: Solve for x
x = 13,176,321,981.30/124,458.75 - Step 6: Final answer
x = 105,868.99
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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.