Finding the Fourth Proportional to 122,975.80, 184,463.70 and 39,869.80
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Solution
The fourth proportional to 122,975.80, 184,463.70 and 39,869.80 is: 59,804.70
Step by Step Solution
- Step 1: Write the proportion equation
122,975.80 : 184,463.70 = 39,869.80 : x - Step 2: Convert to fraction form
122,975.80/184,463.70 = 39,869.80/x - Step 3: Cross multiply
122,975.80x = 184,463.70 × 39,869.80 - Step 4: Simplify right side
122,975.80x = 7,354,530,826.26 - Step 5: Solve for x
x = 7,354,530,826.26/122,975.80 - Step 6: Final answer
x = 59,804.70
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1.5x scale
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.