Finding the Fourth Proportional to 115,145.70, 172,707.21 and 40,252.02
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Solution
The fourth proportional to 115,145.70, 172,707.21 and 40,252.02 is: 60,374.07
Step by Step Solution
- Step 1: Write the proportion equation
115,145.70 : 172,707.21 = 40,252.02 : x - Step 2: Convert to fraction form
115,145.70/172,707.21 = 40,252.02/x - Step 3: Cross multiply
115,145.70x = 172,707.21 × 40,252.02 - Step 4: Simplify right side
115,145.70x = 6,951,814,071.06 - Step 5: Solve for x
x = 6,951,814,071.06/115,145.70 - Step 6: Final answer
x = 60,374.07
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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.