Finding the Fourth Proportional to 135,392.19, 186,847.07 and 74,962.84
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Solution
The fourth proportional to 135,392.19, 186,847.07 and 74,962.84 is: 103,451.95
Step by Step Solution
- Step 1: Write the proportion equation
135,392.19 : 186,847.07 = 74,962.84 : x - Step 2: Convert to fraction form
135,392.19/186,847.07 = 74,962.84/x - Step 3: Cross multiply
135,392.19x = 186,847.07 × 74,962.84 - Step 4: Simplify right side
135,392.19x = 14,006,585,995.78 - Step 5: Solve for x
x = 14,006,585,995.78/135,392.19 - Step 6: Final answer
x = 103,451.95
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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.