Finding the Fourth Proportional to 106,973.36, 147,628.68 and 59,231.96
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Solution
The fourth proportional to 106,973.36, 147,628.68 and 59,231.96 is: 81,743.12
Step by Step Solution
- Step 1: Write the proportion equation
106,973.36 : 147,628.68 = 59,231.96 : x - Step 2: Convert to fraction form
106,973.36/147,628.68 = 59,231.96/x - Step 3: Cross multiply
106,973.36x = 147,628.68 × 59,231.96 - Step 4: Simplify right side
106,973.36x = 8,744,336,068.61 - Step 5: Solve for x
x = 8,744,336,068.61/106,973.36 - Step 6: Final answer
x = 81,743.12
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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.