Finding the Fourth Proportional to 191,057.99, 286,149.93 and 91,288.31
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Solution
The fourth proportional to 191,057.99, 286,149.93 and 91,288.31 is: 136,723.63
Step by Step Solution
- Step 1: Write the proportion equation
191,057.99 : 286,149.93 = 91,288.31 : x - Step 2: Convert to fraction form
191,057.99/286,149.93 = 91,288.31/x - Step 3: Cross multiply
191,057.99x = 286,149.93 × 91,288.31 - Step 4: Simplify right side
191,057.99x = 26,122,142,085.57 - Step 5: Solve for x
x = 26,122,142,085.57/191,057.99 - Step 6: Final answer
x = 136,723.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.