Finding the Fourth Proportional to 122,128.13, 183,254.78 and 58,158.63
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Solution
The fourth proportional to 122,128.13, 183,254.78 and 58,158.63 is: 87,267.75
Step by Step Solution
- Step 1: Write the proportion equation
122,128.13 : 183,254.78 = 58,158.63 : x - Step 2: Convert to fraction form
122,128.13/183,254.78 = 58,158.63/x - Step 3: Cross multiply
122,128.13x = 183,254.78 × 58,158.63 - Step 4: Simplify right side
122,128.13x = 10,657,847,091.15 - Step 5: Solve for x
x = 10,657,847,091.15/122,128.13 - Step 6: Final answer
x = 87,267.75
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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.