Finding the Fourth Proportional to 105,134.11, 145,083.80 and 59,811.99
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Solution
The fourth proportional to 105,134.11, 145,083.80 and 59,811.99 is: 82,539.82
Step by Step Solution
- Step 1: Write the proportion equation
105,134.11 : 145,083.80 = 59,811.99 : x - Step 2: Convert to fraction form
105,134.11/145,083.80 = 59,811.99/x - Step 3: Cross multiply
105,134.11x = 145,083.80 × 59,811.99 - Step 4: Simplify right side
105,134.11x = 8,677,751,007.94 - Step 5: Solve for x
x = 8,677,751,007.94/105,134.11 - Step 6: Final answer
x = 82,539.82
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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.