Finding the Fourth Proportional to 127,714.05, 176,237.64 and 73,989.79
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Solution
The fourth proportional to 127,714.05, 176,237.64 and 73,989.79 is: 102,101.42
Step by Step Solution
- Step 1: Write the proportion equation
127,714.05 : 176,237.64 = 73,989.79 : x - Step 2: Convert to fraction form
127,714.05/176,237.64 = 73,989.79/x - Step 3: Cross multiply
127,714.05x = 176,237.64 × 73,989.79 - Step 4: Simplify right side
127,714.05x = 13,039,785,533.10 - Step 5: Solve for x
x = 13,039,785,533.10/127,714.05 - Step 6: Final answer
x = 102,101.42
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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.