Finding the Fourth Proportional to 113,762.19, 156,989.37 and 62,772.96
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Solution
The fourth proportional to 113,762.19, 156,989.37 and 62,772.96 is: 86,625.33
Step by Step Solution
- Step 1: Write the proportion equation
113,762.19 : 156,989.37 = 62,772.96 : x - Step 2: Convert to fraction form
113,762.19/156,989.37 = 62,772.96/x - Step 3: Cross multiply
113,762.19x = 156,989.37 × 62,772.96 - Step 4: Simplify right side
113,762.19x = 9,854,687,443.44 - Step 5: Solve for x
x = 9,854,687,443.44/113,762.19 - Step 6: Final answer
x = 86,625.33
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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.