Finding the Fourth Proportional to 113,689.74, 156,893.09 and 62,704.63
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Solution
The fourth proportional to 113,689.74, 156,893.09 and 62,704.63 is: 86,533.07
Step by Step Solution
- Step 1: Write the proportion equation
113,689.74 : 156,893.09 = 62,704.63 : x - Step 2: Convert to fraction form
113,689.74/156,893.09 = 62,704.63/x - Step 3: Cross multiply
113,689.74x = 156,893.09 × 62,704.63 - Step 4: Simplify right side
113,689.74x = 9,837,923,040.60 - Step 5: Solve for x
x = 9,837,923,040.60/113,689.74 - Step 6: Final answer
x = 86,533.07
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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.