Finding the Fourth Proportional to 126,295.19, 189,278.73 and 51,328.08
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Solution
The fourth proportional to 126,295.19, 189,278.73 and 51,328.08 is: 76,925.45
Step by Step Solution
- Step 1: Write the proportion equation
126,295.19 : 189,278.73 = 51,328.08 : x - Step 2: Convert to fraction form
126,295.19/189,278.73 = 51,328.08/x - Step 3: Cross multiply
126,295.19x = 189,278.73 × 51,328.08 - Step 4: Simplify right side
126,295.19x = 9,715,313,795.74 - Step 5: Solve for x
x = 9,715,313,795.74/126,295.19 - Step 6: Final answer
x = 76,925.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.