Finding the Fourth Proportional to 129,976.63, 194,964.95 and 46,870.63
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Solution
The fourth proportional to 129,976.63, 194,964.95 and 46,870.63 is: 70,305.94
Step by Step Solution
- Step 1: Write the proportion equation
129,976.63 : 194,964.95 = 46,870.63 : x - Step 2: Convert to fraction form
129,976.63/194,964.95 = 46,870.63/x - Step 3: Cross multiply
129,976.63x = 194,964.95 × 46,870.63 - Step 4: Simplify right side
129,976.63x = 9,138,128,825.24 - Step 5: Solve for x
x = 9,138,128,825.24/129,976.63 - Step 6: Final answer
x = 70,305.94
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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.