Finding the Fourth Proportional to 131,359.68, 181,277.50 and 74,774.68
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Solution
The fourth proportional to 131,359.68, 181,277.50 and 74,774.68 is: 103,189.71
Step by Step Solution
- Step 1: Write the proportion equation
131,359.68 : 181,277.50 = 74,774.68 : x - Step 2: Convert to fraction form
131,359.68/181,277.50 = 74,774.68/x - Step 3: Cross multiply
131,359.68x = 181,277.50 × 74,774.68 - Step 4: Simplify right side
131,359.68x = 13,554,967,053.70 - Step 5: Solve for x
x = 13,554,967,053.70/131,359.68 - Step 6: Final answer
x = 103,189.71
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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.