Finding the Fourth Proportional to 135,283.10, 186,688.82 and 74,852.65
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Solution
The fourth proportional to 135,283.10, 186,688.82 and 74,852.65 is: 103,295.62
Step by Step Solution
- Step 1: Write the proportion equation
135,283.10 : 186,688.82 = 74,852.65 : x - Step 2: Convert to fraction form
135,283.10/186,688.82 = 74,852.65/x - Step 3: Cross multiply
135,283.10x = 186,688.82 × 74,852.65 - Step 4: Simplify right side
135,283.10x = 13,974,152,622.78 - Step 5: Solve for x
x = 13,974,152,622.78/135,283.10 - Step 6: Final answer
x = 103,295.62
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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.