Finding the Fourth Proportional to 172,555.62, 258,713.34 and 76,440.63
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Solution
The fourth proportional to 172,555.62, 258,713.34 and 76,440.63 is: 114,607.75
Step by Step Solution
- Step 1: Write the proportion equation
172,555.62 : 258,713.34 = 76,440.63 : x - Step 2: Convert to fraction form
172,555.62/258,713.34 = 76,440.63/x - Step 3: Cross multiply
172,555.62x = 258,713.34 × 76,440.63 - Step 4: Simplify right side
172,555.62x = 19,776,210,699.00 - Step 5: Solve for x
x = 19,776,210,699.00/172,555.62 - Step 6: Final answer
x = 114,607.75
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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.