Finding the Fourth Proportional to 128,602.44, 177,412.12 and 83,295.48
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Solution
The fourth proportional to 128,602.44, 177,412.12 and 83,295.48 is: 114,909.39
Step by Step Solution
- Step 1: Write the proportion equation
128,602.44 : 177,412.12 = 83,295.48 : x - Step 2: Convert to fraction form
128,602.44/177,412.12 = 83,295.48/x - Step 3: Cross multiply
128,602.44x = 177,412.12 × 83,295.48 - Step 4: Simplify right side
128,602.44x = 14,777,627,693.22 - Step 5: Solve for x
x = 14,777,627,693.22/128,602.44 - Step 6: Final answer
x = 114,909.39
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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.