Finding the Fourth Proportional to 150,641.13, 207,882.96 and 86,977.56
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Solution
The fourth proportional to 150,641.13, 207,882.96 and 86,977.56 is: 120,027.99
Step by Step Solution
- Step 1: Write the proportion equation
150,641.13 : 207,882.96 = 86,977.56 : x - Step 2: Convert to fraction form
150,641.13/207,882.96 = 86,977.56/x - Step 3: Cross multiply
150,641.13x = 207,882.96 × 86,977.56 - Step 4: Simplify right side
150,641.13x = 18,081,153,079.77 - Step 5: Solve for x
x = 18,081,153,079.77/150,641.13 - Step 6: Final answer
x = 120,027.99
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1.5x scale
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.