Finding the Fourth Proportional to 105,267.67, 145,269.56 and 57,519.99
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Solution
The fourth proportional to 105,267.67, 145,269.56 and 57,519.99 is: 79,377.68
Step by Step Solution
- Step 1: Write the proportion equation
105,267.67 : 145,269.56 = 57,519.99 : x - Step 2: Convert to fraction form
105,267.67/145,269.56 = 57,519.99/x - Step 3: Cross multiply
105,267.67x = 145,269.56 × 57,519.99 - Step 4: Simplify right side
105,267.67x = 8,355,903,638.50 - Step 5: Solve for x
x = 8,355,903,638.50/105,267.67 - Step 6: Final answer
x = 79,377.68
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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.