Finding the Fourth Proportional to 172,569.51, 238,162.01 and 100,944.99
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Solution
The fourth proportional to 172,569.51, 238,162.01 and 100,944.99 is: 139,313.49
Step by Step Solution
- Step 1: Write the proportion equation
172,569.51 : 238,162.01 = 100,944.99 : x - Step 2: Convert to fraction form
172,569.51/238,162.01 = 100,944.99/x - Step 3: Cross multiply
172,569.51x = 238,162.01 × 100,944.99 - Step 4: Simplify right side
172,569.51x = 24,041,261,213.11 - Step 5: Solve for x
x = 24,041,261,213.11/172,569.51 - Step 6: Final answer
x = 139,313.49
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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.