Finding the Fourth Proportional to 102,698.01, 141,726.14 and 57,380.99
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Solution
The fourth proportional to 102,698.01, 141,726.14 and 57,380.99 is: 79,187.37
Step by Step Solution
- Step 1: Write the proportion equation
102,698.01 : 141,726.14 = 57,380.99 : x - Step 2: Convert to fraction form
102,698.01/141,726.14 = 57,380.99/x - Step 3: Cross multiply
102,698.01x = 141,726.14 × 57,380.99 - Step 4: Simplify right side
102,698.01x = 8,132,385,441.72 - Step 5: Solve for x
x = 8,132,385,441.72/102,698.01 - Step 6: Final answer
x = 79,187.37
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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.