Finding the Fourth Proportional to 131,641.48, 181,476.28 and 93,850.12
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Solution
The fourth proportional to 131,641.48, 181,476.28 and 93,850.12 is: 129,378.45
Step by Step Solution
- Step 1: Write the proportion equation
131,641.48 : 181,476.28 = 93,850.12 : x - Step 2: Convert to fraction form
131,641.48/181,476.28 = 93,850.12/x - Step 3: Cross multiply
131,641.48x = 181,476.28 × 93,850.12 - Step 4: Simplify right side
131,641.48x = 17,031,570,655.15 - Step 5: Solve for x
x = 17,031,570,655.15/131,641.48 - Step 6: Final answer
x = 129,378.45
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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.