Finding the Fourth Proportional to 128,686.84, 192,764.58 and 95,444.44
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Solution
The fourth proportional to 128,686.84, 192,764.58 and 95,444.44 is: 142,969.61
Step by Step Solution
- Step 1: Write the proportion equation
128,686.84 : 192,764.58 = 95,444.44 : x - Step 2: Convert to fraction form
128,686.84/192,764.58 = 95,444.44/x - Step 3: Cross multiply
128,686.84x = 192,764.58 × 95,444.44 - Step 4: Simplify right side
128,686.84x = 18,398,307,389.94 - Step 5: Solve for x
x = 18,398,307,389.94/128,686.84 - Step 6: Final answer
x = 142,969.61
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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.