Finding the Fourth Proportional to 126,298.80, 174,124.86 and 104,707.05
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Solution
The fourth proportional to 126,298.80, 174,124.86 and 104,707.05 is: 144,356.88
Step by Step Solution
- Step 1: Write the proportion equation
126,298.80 : 174,124.86 = 104,707.05 : x - Step 2: Convert to fraction form
126,298.80/174,124.86 = 104,707.05/x - Step 3: Cross multiply
126,298.80x = 174,124.86 × 104,707.05 - Step 4: Simplify right side
126,298.80x = 18,232,100,422.26 - Step 5: Solve for x
x = 18,232,100,422.26/126,298.80 - Step 6: Final answer
x = 144,356.88
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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.