Finding the Fourth Proportional to 140,470.14, 193,848.84 and 76,808.46
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Solution
The fourth proportional to 140,470.14, 193,848.84 and 76,808.46 is: 105,995.70
Step by Step Solution
- Step 1: Write the proportion equation
140,470.14 : 193,848.84 = 76,808.46 : x - Step 2: Convert to fraction form
140,470.14/193,848.84 = 76,808.46/x - Step 3: Cross multiply
140,470.14x = 193,848.84 × 76,808.46 - Step 4: Simplify right side
140,470.14x = 14,889,230,873.19 - Step 5: Solve for x
x = 14,889,230,873.19/140,470.14 - Step 6: Final answer
x = 105,995.70
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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.