Finding the Fourth Proportional to 105,840.85, 146,083.02 and 63,423.99
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Solution
The fourth proportional to 105,840.85, 146,083.02 and 63,423.99 is: 87,538.68
Step by Step Solution
- Step 1: Write the proportion equation
105,840.85 : 146,083.02 = 63,423.99 : x - Step 2: Convert to fraction form
105,840.85/146,083.02 = 63,423.99/x - Step 3: Cross multiply
105,840.85x = 146,083.02 × 63,423.99 - Step 4: Simplify right side
105,840.85x = 9,265,167,999.65 - Step 5: Solve for x
x = 9,265,167,999.65/105,840.85 - Step 6: Final answer
x = 87,538.68
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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.