Finding the Fourth Proportional to 136,014.21, 187,699.70 and 75,590.48
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Solution
The fourth proportional to 136,014.21, 187,699.70 and 75,590.48 is: 104,314.90
Step by Step Solution
- Step 1: Write the proportion equation
136,014.21 : 187,699.70 = 75,590.48 : x - Step 2: Convert to fraction form
136,014.21/187,699.70 = 75,590.48/x - Step 3: Cross multiply
136,014.21x = 187,699.70 × 75,590.48 - Step 4: Simplify right side
136,014.21x = 14,188,309,102.41 - Step 5: Solve for x
x = 14,188,309,102.41/136,014.21 - Step 6: Final answer
x = 104,314.90
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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.