Finding the Fourth Proportional to 128,375.84, 177,098.96 and 83,068.44
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Solution
The fourth proportional to 128,375.84, 177,098.96 and 83,068.44 is: 114,595.82
Step by Step Solution
- Step 1: Write the proportion equation
128,375.84 : 177,098.96 = 83,068.44 : x - Step 2: Convert to fraction form
128,375.84/177,098.96 = 83,068.44/x - Step 3: Cross multiply
128,375.84x = 177,098.96 × 83,068.44 - Step 4: Simplify right side
128,375.84x = 14,711,334,332.82 - Step 5: Solve for x
x = 14,711,334,332.82/128,375.84 - Step 6: Final answer
x = 114,595.82
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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.