Finding the Fourth Proportional to 127,809.24, 176,356.01 and 74,083.76
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Solution
The fourth proportional to 127,809.24, 176,356.01 and 74,083.76 is: 102,223.56
Step by Step Solution
- Step 1: Write the proportion equation
127,809.24 : 176,356.01 = 74,083.76 : x - Step 2: Convert to fraction form
127,809.24/176,356.01 = 74,083.76/x - Step 3: Cross multiply
127,809.24x = 176,356.01 × 74,083.76 - Step 4: Simplify right side
127,809.24x = 13,065,115,948.98 - Step 5: Solve for x
x = 13,065,115,948.98/127,809.24 - Step 6: Final answer
x = 102,223.56
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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.