Finding the Fourth Proportional to 176,707.91, 243,838.71 and 105,074.09
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Solution
The fourth proportional to 176,707.91, 243,838.71 and 105,074.09 is: 144,991.42
Step by Step Solution
- Step 1: Write the proportion equation
176,707.91 : 243,838.71 = 105,074.09 : x - Step 2: Convert to fraction form
176,707.91/243,838.71 = 105,074.09/x - Step 3: Cross multiply
176,707.91x = 243,838.71 × 105,074.09 - Step 4: Simplify right side
176,707.91x = 25,621,130,560.02 - Step 5: Solve for x
x = 25,621,130,560.02/176,707.91 - Step 6: Final answer
x = 144,991.42
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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.