Finding the Fourth Proportional to 122,021.70, 183,000.15 and 37,781.70
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Solution
The fourth proportional to 122,021.70, 183,000.15 and 37,781.70 is: 56,662.52
Step by Step Solution
- Step 1: Write the proportion equation
122,021.70 : 183,000.15 = 37,781.70 : x - Step 2: Convert to fraction form
122,021.70/183,000.15 = 37,781.70/x - Step 3: Cross multiply
122,021.70x = 183,000.15 × 37,781.70 - Step 4: Simplify right side
122,021.70x = 6,914,056,767.26 - Step 5: Solve for x
x = 6,914,056,767.26/122,021.70 - Step 6: Final answer
x = 56,662.52
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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.