Finding the Fourth Proportional to 149,865.68, 206,814.48 and 86,201.84
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Solution
The fourth proportional to 149,865.68, 206,814.48 and 86,201.84 is: 118,958.45
Step by Step Solution
- Step 1: Write the proportion equation
149,865.68 : 206,814.48 = 86,201.84 : x - Step 2: Convert to fraction form
149,865.68/206,814.48 = 86,201.84/x - Step 3: Cross multiply
149,865.68x = 206,814.48 × 86,201.84 - Step 4: Simplify right side
149,865.68x = 17,827,788,714.64 - Step 5: Solve for x
x = 17,827,788,714.64/149,865.68 - Step 6: Final answer
x = 118,958.45
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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.