Finding the Fourth Proportional to 129,051.79, 177,679.52 and 110,112.91
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Solution
The fourth proportional to 129,051.79, 177,679.52 and 110,112.91 is: 151,604.32
Step by Step Solution
- Step 1: Write the proportion equation
129,051.79 : 177,679.52 = 110,112.91 : x - Step 2: Convert to fraction form
129,051.79/177,679.52 = 110,112.91/x - Step 3: Cross multiply
129,051.79x = 177,679.52 × 110,112.91 - Step 4: Simplify right side
129,051.79x = 19,564,808,444.04 - Step 5: Solve for x
x = 19,564,808,444.04/129,051.79 - Step 6: Final answer
x = 151,604.32
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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.