Finding the Fourth Proportional to 131,188.08, 181,041.64 and 71,572.08
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Solution
The fourth proportional to 131,188.08, 181,041.64 and 71,572.08 is: 98,770.61
Step by Step Solution
- Step 1: Write the proportion equation
131,188.08 : 181,041.64 = 71,572.08 : x - Step 2: Convert to fraction form
131,188.08/181,041.64 = 71,572.08/x - Step 3: Cross multiply
131,188.08x = 181,041.64 × 71,572.08 - Step 4: Simplify right side
131,188.08x = 12,957,526,741.41 - Step 5: Solve for x
x = 12,957,526,741.41/131,188.08 - Step 6: Final answer
x = 98,770.61
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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.