Finding the Fourth Proportional to 122,764.08, 169,416.18 and 72,463.08
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Solution
The fourth proportional to 122,764.08, 169,416.18 and 72,463.08 is: 100,000.08
Step by Step Solution
- Step 1: Write the proportion equation
122,764.08 : 169,416.18 = 72,463.08 : x - Step 2: Convert to fraction form
122,764.08/169,416.18 = 72,463.08/x - Step 3: Cross multiply
122,764.08x = 169,416.18 × 72,463.08 - Step 4: Simplify right side
122,764.08x = 12,276,418,204.63 - Step 5: Solve for x
x = 12,276,418,204.63/122,764.08 - Step 6: Final answer
x = 100,000.08
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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.