Finding the Fourth Proportional to 114,319.68, 157,787.40 and 76,080.84
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Solution
The fourth proportional to 114,319.68, 157,787.40 and 76,080.84 is: 105,009.02
Step by Step Solution
- Step 1: Write the proportion equation
114,319.68 : 157,787.40 = 76,080.84 : x - Step 2: Convert to fraction form
114,319.68/157,787.40 = 76,080.84/x - Step 3: Cross multiply
114,319.68x = 157,787.40 × 76,080.84 - Step 4: Simplify right side
114,319.68x = 12,004,597,933.42 - Step 5: Solve for x
x = 12,004,597,933.42/114,319.68 - Step 6: Final answer
x = 105,009.02
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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.