Finding the Fourth Proportional to 122,717.80, 184,076.70 and 39,611.80
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Solution
The fourth proportional to 122,717.80, 184,076.70 and 39,611.80 is: 59,417.70
Step by Step Solution
- Step 1: Write the proportion equation
122,717.80 : 184,076.70 = 39,611.80 : x - Step 2: Convert to fraction form
122,717.80/184,076.70 = 39,611.80/x - Step 3: Cross multiply
122,717.80x = 184,076.70 × 39,611.80 - Step 4: Simplify right side
122,717.80x = 7,291,609,425.06 - Step 5: Solve for x
x = 7,291,609,425.06/122,717.80 - Step 6: Final answer
x = 59,417.70
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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.