Finding the Fourth Proportional to 122,636.02, 169,178.61 and 106,695.22
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Solution
The fourth proportional to 122,636.02, 169,178.61 and 106,695.22 is: 147,187.99
Step by Step Solution
- Step 1: Write the proportion equation
122,636.02 : 169,178.61 = 106,695.22 : x - Step 2: Convert to fraction form
122,636.02/169,178.61 = 106,695.22/x - Step 3: Cross multiply
122,636.02x = 169,178.61 × 106,695.22 - Step 4: Simplify right side
122,636.02x = 18,050,549,013.24 - Step 5: Solve for x
x = 18,050,549,013.24/122,636.02 - Step 6: Final answer
x = 147,187.99
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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.