Finding the Fourth Proportional to 119,783.99, 165,302.69 and 66,070.46
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Solution
The fourth proportional to 119,783.99, 165,302.69 and 66,070.46 is: 91,177.66
Step by Step Solution
- Step 1: Write the proportion equation
119,783.99 : 165,302.69 = 66,070.46 : x - Step 2: Convert to fraction form
119,783.99/165,302.69 = 66,070.46/x - Step 3: Cross multiply
119,783.99x = 165,302.69 × 66,070.46 - Step 4: Simplify right side
119,783.99x = 10,921,623,610.67 - Step 5: Solve for x
x = 10,921,623,610.67/119,783.99 - Step 6: Final answer
x = 91,177.66
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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.