Finding the Fourth Proportional to 126,313.80, 174,312.64 and 69,724.76
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Solution
The fourth proportional to 126,313.80, 174,312.64 and 69,724.76 is: 96,219.95
Step by Step Solution
- Step 1: Write the proportion equation
126,313.80 : 174,312.64 = 69,724.76 : x - Step 2: Convert to fraction form
126,313.80/174,312.64 = 69,724.76/x - Step 3: Cross multiply
126,313.80x = 174,312.64 × 69,724.76 - Step 4: Simplify right side
126,313.80x = 12,153,906,988.97 - Step 5: Solve for x
x = 12,153,906,988.97/126,313.80 - Step 6: Final answer
x = 96,219.95
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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.