Finding the Fourth Proportional to 127,787.78, 176,347.84 and 74,104.65
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Solution
The fourth proportional to 127,787.78, 176,347.84 and 74,104.65 is: 102,264.83
Step by Step Solution
- Step 1: Write the proportion equation
127,787.78 : 176,347.84 = 74,104.65 : x - Step 2: Convert to fraction form
127,787.78/176,347.84 = 74,104.65/x - Step 3: Cross multiply
127,787.78x = 176,347.84 × 74,104.65 - Step 4: Simplify right side
127,787.78x = 13,068,195,587.59 - Step 5: Solve for x
x = 13,068,195,587.59/127,787.78 - Step 6: Final answer
x = 102,264.83
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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.