Finding the Fourth Proportional to 122,562.21, 169,126.63 and 68,836.74
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Solution
The fourth proportional to 122,562.21, 169,126.63 and 68,836.74 is: 94,989.52
Step by Step Solution
- Step 1: Write the proportion equation
122,562.21 : 169,126.63 = 68,836.74 : x - Step 2: Convert to fraction form
122,562.21/169,126.63 = 68,836.74/x - Step 3: Cross multiply
122,562.21x = 169,126.63 × 68,836.74 - Step 4: Simplify right side
122,562.21x = 11,642,125,437.28 - Step 5: Solve for x
x = 11,642,125,437.28/122,562.21 - Step 6: Final answer
x = 94,989.52
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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.