Finding the Fourth Proportional to 128,533.34, 192,762.99 and 44,290.10
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Solution
The fourth proportional to 128,533.34, 192,762.99 and 44,290.10 is: 66,422.39
Step by Step Solution
- Step 1: Write the proportion equation
128,533.34 : 192,762.99 = 44,290.10 : x - Step 2: Convert to fraction form
128,533.34/192,762.99 = 44,290.10/x - Step 3: Cross multiply
128,533.34x = 192,762.99 × 44,290.10 - Step 4: Simplify right side
128,533.34x = 8,537,492,103.40 - Step 5: Solve for x
x = 8,537,492,103.40/128,533.34 - Step 6: Final answer
x = 66,422.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.