Finding the Fourth Proportional to 128,842.34, 193,276.76 and 44,602.34
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Solution
The fourth proportional to 128,842.34, 193,276.76 and 44,602.34 is: 66,908.09
Step by Step Solution
- Step 1: Write the proportion equation
128,842.34 : 193,276.76 = 44,602.34 : x - Step 2: Convert to fraction form
128,842.34/193,276.76 = 44,602.34/x - Step 3: Cross multiply
128,842.34x = 193,276.76 × 44,602.34 - Step 4: Simplify right side
128,842.34x = 8,620,594,574.22 - Step 5: Solve for x
x = 8,620,594,574.22/128,842.34 - Step 6: Final answer
x = 66,908.09
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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.