Finding the Fourth Proportional to 129,807.76, 193,565.84 and 125,182.21
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Solution
The fourth proportional to 129,807.76, 193,565.84 and 125,182.21 is: 186,668.34
Step by Step Solution
- Step 1: Write the proportion equation
129,807.76 : 193,565.84 = 125,182.21 : x - Step 2: Convert to fraction form
129,807.76/193,565.84 = 125,182.21/x - Step 3: Cross multiply
129,807.76x = 193,565.84 × 125,182.21 - Step 4: Simplify right side
129,807.76x = 24,230,999,631.71 - Step 5: Solve for x
x = 24,230,999,631.71/129,807.76 - Step 6: Final answer
x = 186,668.34
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.