Finding the Fourth Proportional to 119,990.64, 165,588.36 and 66,277.02
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Solution
The fourth proportional to 119,990.64, 165,588.36 and 66,277.02 is: 91,462.99
Step by Step Solution
- Step 1: Write the proportion equation
119,990.64 : 165,588.36 = 66,277.02 : x - Step 2: Convert to fraction form
119,990.64/165,588.36 = 66,277.02/x - Step 3: Cross multiply
119,990.64x = 165,588.36 × 66,277.02 - Step 4: Simplify right side
119,990.64x = 10,974,703,047.49 - Step 5: Solve for x
x = 10,974,703,047.49/119,990.64 - Step 6: Final answer
x = 91,462.99
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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.