Finding the Fourth Proportional to 122,374.86, 183,617.36 and 66,149.14
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Solution
The fourth proportional to 122,374.86, 183,617.36 and 66,149.14 is: 99,253.48
Step by Step Solution
- Step 1: Write the proportion equation
122,374.86 : 183,617.36 = 66,149.14 : x - Step 2: Convert to fraction form
122,374.86/183,617.36 = 66,149.14/x - Step 3: Cross multiply
122,374.86x = 183,617.36 × 66,149.14 - Step 4: Simplify right side
122,374.86x = 12,146,130,453.07 - Step 5: Solve for x
x = 12,146,130,453.07/122,374.86 - Step 6: Final answer
x = 99,253.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.