Finding the Fourth Proportional to 119,009.95, 164,235.41 and 65,293.99
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Solution
The fourth proportional to 119,009.95, 164,235.41 and 65,293.99 is: 90,106.63
Step by Step Solution
- Step 1: Write the proportion equation
119,009.95 : 164,235.41 = 65,293.99 : x - Step 2: Convert to fraction form
119,009.95/164,235.41 = 65,293.99/x - Step 3: Cross multiply
119,009.95x = 164,235.41 × 65,293.99 - Step 4: Simplify right side
119,009.95x = 10,723,585,218.19 - Step 5: Solve for x
x = 10,723,585,218.19/119,009.95 - Step 6: Final answer
x = 90,106.63
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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.