Finding the Fourth Proportional to 135,124.99, 186,469.74 and 74,698.18
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Solution
The fourth proportional to 135,124.99, 186,469.74 and 74,698.18 is: 103,081.97
Step by Step Solution
- Step 1: Write the proportion equation
135,124.99 : 186,469.74 = 74,698.18 : x - Step 2: Convert to fraction form
135,124.99/186,469.74 = 74,698.18/x - Step 3: Cross multiply
135,124.99x = 186,469.74 × 74,698.18 - Step 4: Simplify right side
135,124.99x = 13,928,950,203.07 - Step 5: Solve for x
x = 13,928,950,203.07/135,124.99 - Step 6: Final answer
x = 103,081.97
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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.