Finding the Fourth Proportional to 191,816.97, 264,701.36 and 105,779.58
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Solution
The fourth proportional to 191,816.97, 264,701.36 and 105,779.58 is: 145,972.48
Step by Step Solution
- Step 1: Write the proportion equation
191,816.97 : 264,701.36 = 105,779.58 : x - Step 2: Convert to fraction form
191,816.97/264,701.36 = 105,779.58/x - Step 3: Cross multiply
191,816.97x = 264,701.36 × 105,779.58 - Step 4: Simplify right side
191,816.97x = 27,999,998,686.23 - Step 5: Solve for x
x = 27,999,998,686.23/191,816.97 - Step 6: Final answer
x = 145,972.48
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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.