Finding the Fourth Proportional to 122,128.90, 183,193.35 and 101,133.70
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Solution
The fourth proportional to 122,128.90, 183,193.35 and 101,133.70 is: 151,700.55
Step by Step Solution
- Step 1: Write the proportion equation
122,128.90 : 183,193.35 = 101,133.70 : x - Step 2: Convert to fraction form
122,128.90/183,193.35 = 101,133.70/x - Step 3: Cross multiply
122,128.90x = 183,193.35 × 101,133.70 - Step 4: Simplify right side
122,128.90x = 18,527,021,300.90 - Step 5: Solve for x
x = 18,527,021,300.90/122,128.90 - Step 6: Final answer
x = 151,700.55
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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.