Finding the Fourth Proportional to 135,787.74, 187,409.46 and 75,377.70
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Solution
The fourth proportional to 135,787.74, 187,409.46 and 75,377.70 is: 104,033.65
Step by Step Solution
- Step 1: Write the proportion equation
135,787.74 : 187,409.46 = 75,377.70 : x - Step 2: Convert to fraction form
135,787.74/187,409.46 = 75,377.70/x - Step 3: Cross multiply
135,787.74x = 187,409.46 × 75,377.70 - Step 4: Simplify right side
135,787.74x = 14,126,494,053.04 - Step 5: Solve for x
x = 14,126,494,053.04/135,787.74 - Step 6: Final answer
x = 104,033.65
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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.