Finding the Fourth Proportional to 138,359.64, 207,539.52 and 106,815.77
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Solution
The fourth proportional to 138,359.64, 207,539.52 and 106,815.77 is: 160,223.70
Step by Step Solution
- Step 1: Write the proportion equation
138,359.64 : 207,539.52 = 106,815.77 : x - Step 2: Convert to fraction form
138,359.64/207,539.52 = 106,815.77/x - Step 3: Cross multiply
138,359.64x = 207,539.52 × 106,815.77 - Step 4: Simplify right side
138,359.64x = 22,168,493,634.23 - Step 5: Solve for x
x = 22,168,493,634.23/138,359.64 - Step 6: Final answer
x = 160,223.70
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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.