Finding the Fourth Proportional to 129,925.24, 179,246.19 and 76,190.38
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Solution
The fourth proportional to 129,925.24, 179,246.19 and 76,190.38 is: 105,113.03
Step by Step Solution
- Step 1: Write the proportion equation
129,925.24 : 179,246.19 = 76,190.38 : x - Step 2: Convert to fraction form
129,925.24/179,246.19 = 76,190.38/x - Step 3: Cross multiply
129,925.24x = 179,246.19 × 76,190.38 - Step 4: Simplify right side
129,925.24x = 13,656,835,329.65 - Step 5: Solve for x
x = 13,656,835,329.65/129,925.24 - Step 6: Final answer
x = 105,113.03
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1.5x scale
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.