Finding the Fourth Proportional to 106,880.12, 147,451.70 and 61,533.77
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Solution
The fourth proportional to 106,880.12, 147,451.70 and 61,533.77 is: 84,891.92
Step by Step Solution
- Step 1: Write the proportion equation
106,880.12 : 147,451.70 = 61,533.77 : x - Step 2: Convert to fraction form
106,880.12/147,451.70 = 61,533.77/x - Step 3: Cross multiply
106,880.12x = 147,451.70 × 61,533.77 - Step 4: Simplify right side
106,880.12x = 9,073,258,686.24 - Step 5: Solve for x
x = 9,073,258,686.24/106,880.12 - Step 6: Final answer
x = 84,891.92
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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.