Finding the Fourth Proportional to 122,263.11, 168,753.11 and 74,542.77
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Solution
The fourth proportional to 122,263.11, 168,753.11 and 74,542.77 is: 102,887.32
Step by Step Solution
- Step 1: Write the proportion equation
122,263.11 : 168,753.11 = 74,542.77 : x - Step 2: Convert to fraction form
122,263.11/168,753.11 = 74,542.77/x - Step 3: Cross multiply
122,263.11x = 168,753.11 × 74,542.77 - Step 4: Simplify right side
122,263.11x = 12,579,323,892.80 - Step 5: Solve for x
x = 12,579,323,892.80/122,263.11 - Step 6: Final answer
x = 102,887.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.