Finding the Fourth Proportional to 106,507.36, 146,979.18 and 58,761.08
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Solution
The fourth proportional to 106,507.36, 146,979.18 and 58,761.08 is: 81,089.75
Step by Step Solution
- Step 1: Write the proportion equation
106,507.36 : 146,979.18 = 58,761.08 : x - Step 2: Convert to fraction form
106,507.36/146,979.18 = 58,761.08/x - Step 3: Cross multiply
106,507.36x = 146,979.18 × 58,761.08 - Step 4: Simplify right side
106,507.36x = 8,636,655,354.31 - Step 5: Solve for x
x = 8,636,655,354.31/106,507.36 - Step 6: Final answer
x = 81,089.75
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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.