Finding the Fourth Proportional to 105,265.67, 145,266.80 and 57,517.99
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Solution
The fourth proportional to 105,265.67, 145,266.80 and 57,517.99 is: 79,374.92
Step by Step Solution
- Step 1: Write the proportion equation
105,265.67 : 145,266.80 = 57,517.99 : x - Step 2: Convert to fraction form
105,265.67/145,266.80 = 57,517.99/x - Step 3: Cross multiply
105,265.67x = 145,266.80 × 57,517.99 - Step 4: Simplify right side
105,265.67x = 8,355,453,698.98 - Step 5: Solve for x
x = 8,355,453,698.98/105,265.67 - Step 6: Final answer
x = 79,374.92
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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.