Finding the Fourth Proportional to 141,203.79, 194,888.84 and 87,512.67
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Solution
The fourth proportional to 141,203.79, 194,888.84 and 87,512.67 is: 120,784.59
Step by Step Solution
- Step 1: Write the proportion equation
141,203.79 : 194,888.84 = 87,512.67 : x - Step 2: Convert to fraction form
141,203.79/194,888.84 = 87,512.67/x - Step 3: Cross multiply
141,203.79x = 194,888.84 × 87,512.67 - Step 4: Simplify right side
141,203.79x = 17,055,242,304.04 - Step 5: Solve for x
x = 17,055,242,304.04/141,203.79 - Step 6: Final answer
x = 120,784.59
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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.