Finding the Fourth Proportional to 151,984.72, 209,764.43 and 102,904.08
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Solution
The fourth proportional to 151,984.72, 209,764.43 and 102,904.08 is: 142,024.91
Step by Step Solution
- Step 1: Write the proportion equation
151,984.72 : 209,764.43 = 102,904.08 : x - Step 2: Convert to fraction form
151,984.72/209,764.43 = 102,904.08/x - Step 3: Cross multiply
151,984.72x = 209,764.43 × 102,904.08 - Step 4: Simplify right side
151,984.72x = 21,585,615,685.87 - Step 5: Solve for x
x = 21,585,615,685.87/151,984.72 - Step 6: Final answer
x = 142,024.91
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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.