Finding the Fourth Proportional to 112,038.45, 154,400.40 and 80,151.99
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Solution
The fourth proportional to 112,038.45, 154,400.40 and 80,151.99 is: 110,457.61
Step by Step Solution
- Step 1: Write the proportion equation
112,038.45 : 154,400.40 = 80,151.99 : x - Step 2: Convert to fraction form
112,038.45/154,400.40 = 80,151.99/x - Step 3: Cross multiply
112,038.45x = 154,400.40 × 80,151.99 - Step 4: Simplify right side
112,038.45x = 12,375,499,316.80 - Step 5: Solve for x
x = 12,375,499,316.80/112,038.45 - Step 6: Final answer
x = 110,457.61
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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.