Finding the Fourth Proportional to 153,532.80, 211,871.36 and 85,550.08
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Solution
The fourth proportional to 153,532.80, 211,871.36 and 85,550.08 is: 118,056.94
Step by Step Solution
- Step 1: Write the proportion equation
153,532.80 : 211,871.36 = 85,550.08 : x - Step 2: Convert to fraction form
153,532.80/211,871.36 = 85,550.08/x - Step 3: Cross multiply
153,532.80x = 211,871.36 × 85,550.08 - Step 4: Simplify right side
153,532.80x = 18,125,611,797.71 - Step 5: Solve for x
x = 18,125,611,797.71/153,532.80 - Step 6: Final answer
x = 118,056.94
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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.