Finding the Fourth Proportional to 113,761.19, 156,987.99 and 62,771.96
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Solution
The fourth proportional to 113,761.19, 156,987.99 and 62,771.96 is: 86,623.95
Step by Step Solution
- Step 1: Write the proportion equation
113,761.19 : 156,987.99 = 62,771.96 : x - Step 2: Convert to fraction form
113,761.19/156,987.99 = 62,771.96/x - Step 3: Cross multiply
113,761.19x = 156,987.99 × 62,771.96 - Step 4: Simplify right side
113,761.19x = 9,854,444,221.23 - Step 5: Solve for x
x = 9,854,444,221.23/113,761.19 - Step 6: Final answer
x = 86,623.95
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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.