Finding the Fourth Proportional to 131,873.84, 181,985.67 and 71,446.02
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Solution
The fourth proportional to 131,873.84, 181,985.67 and 71,446.02 is: 98,595.39
Step by Step Solution
- Step 1: Write the proportion equation
131,873.84 : 181,985.67 = 71,446.02 : x - Step 2: Convert to fraction form
131,873.84/181,985.67 = 71,446.02/x - Step 3: Cross multiply
131,873.84x = 181,985.67 × 71,446.02 - Step 4: Simplify right side
131,873.84x = 13,002,151,818.53 - Step 5: Solve for x
x = 13,002,151,818.53/131,873.84 - Step 6: Final answer
x = 98,595.39
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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.