Finding the Fourth Proportional to 102,176.10, 141,067.80 and 69,964.62
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Solution
The fourth proportional to 102,176.10, 141,067.80 and 69,964.62 is: 96,595.53
Step by Step Solution
- Step 1: Write the proportion equation
102,176.10 : 141,067.80 = 69,964.62 : x - Step 2: Convert to fraction form
102,176.10/141,067.80 = 69,964.62/x - Step 3: Cross multiply
102,176.10x = 141,067.80 × 69,964.62 - Step 4: Simplify right side
102,176.10x = 9,869,755,021.24 - Step 5: Solve for x
x = 9,869,755,021.24/102,176.10 - Step 6: Final answer
x = 96,595.53
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1.5x scale
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.