Finding the Fourth Proportional to 128,392.47, 192,551.03 and 48,372.68
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Solution
The fourth proportional to 128,392.47, 192,551.03 and 48,372.68 is: 72,544.82
Step by Step Solution
- Step 1: Write the proportion equation
128,392.47 : 192,551.03 = 48,372.68 : x - Step 2: Convert to fraction form
128,392.47/192,551.03 = 48,372.68/x - Step 3: Cross multiply
128,392.47x = 192,551.03 × 48,372.68 - Step 4: Simplify right side
128,392.47x = 9,314,208,153.24 - Step 5: Solve for x
x = 9,314,208,153.24/128,392.47 - Step 6: Final answer
x = 72,544.82
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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.