Finding the Fourth Proportional to 147,739.48, 221,631.09 and 54,237.94
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Solution
The fourth proportional to 147,739.48, 221,631.09 and 54,237.94 is: 81,364.94
Step by Step Solution
- Step 1: Write the proportion equation
147,739.48 : 221,631.09 = 54,237.94 : x - Step 2: Convert to fraction form
147,739.48/221,631.09 = 54,237.94/x - Step 3: Cross multiply
147,739.48x = 221,631.09 × 54,237.94 - Step 4: Simplify right side
147,739.48x = 12,020,813,004.08 - Step 5: Solve for x
x = 12,020,813,004.08/147,739.48 - Step 6: Final answer
x = 81,364.94
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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.