Finding the Fourth Proportional to 181,985.13, 251,141.99 and 105,509.79
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Solution
The fourth proportional to 181,985.13, 251,141.99 and 105,509.79 is: 145,604.96
Step by Step Solution
- Step 1: Write the proportion equation
181,985.13 : 251,141.99 = 105,509.79 : x - Step 2: Convert to fraction form
181,985.13/251,141.99 = 105,509.79/x - Step 3: Cross multiply
181,985.13x = 251,141.99 × 105,509.79 - Step 4: Simplify right side
181,985.13x = 26,497,938,097.53 - Step 5: Solve for x
x = 26,497,938,097.53/181,985.13 - Step 6: Final answer
x = 145,604.96
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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.