Finding the Fourth Proportional to 129,998.24, 179,398.76 and 76,284.15
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Solution
The fourth proportional to 129,998.24, 179,398.76 and 76,284.15 is: 105,272.82
Step by Step Solution
- Step 1: Write the proportion equation
129,998.24 : 179,398.76 = 76,284.15 : x - Step 2: Convert to fraction form
129,998.24/179,398.76 = 76,284.15/x - Step 3: Cross multiply
129,998.24x = 179,398.76 × 76,284.15 - Step 4: Simplify right side
129,998.24x = 13,685,281,536.23 - Step 5: Solve for x
x = 13,685,281,536.23/129,998.24 - Step 6: Final answer
x = 105,272.82
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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.